dual%and%mul)ple%frame%survey%% - european commission frame survey.pdf · combining landline and...

49
Dual and Mul)ple Frame Survey Fulvia Meca4 University of MilanoBicocca, Italy

Upload: others

Post on 14-Jul-2020

2 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Dual  and  Mul)ple  Frame  Survey    

                           Fulvia  Meca4  University  of  Milano-­‐Bicocca,  Italy  

Page 2: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Fulvia  Meca4  

•  Professor  of  Sta)s)cs          Dpt  Sociology  &  Social  Research,  UniMiB    

•  Director  of  the  PhD  program  in  Sta)s)cs,  UniMiB  (since  2010)  

 

•  Past-­‐President  of  S2G-­‐  Survey  Sampling  Group  of  the  Italian  Sta)s)cal  Society  (2009-­‐2011)  

     

Page 3: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Fulvia  Meca4  

•  Research  on  DF  &  MF  survey  since  2003    

•  Joint  with  AC  Singh  since  2007          Sta)s)cs  Research  &  Innova)on  Division                                                                                since  2010          Center  of  Excellence  in  Survey  Research      •  Joint  with  C.  Ferraz    since  2014          Federal  University  of  Pernambuco  –  Brazil          FAO  –  Rome,  Italy      

Wednesday, 16 April 2008

Fulvia Mecatti, PhD Department of Statistics University of Milan-Bicocca Via Bicocca degli Arcimboldi, 8 20126 Milano, Italy Dear Professor Mecatti: I would like to invite you to visit Statistics Canada from July 7 to August 1, 2008 to continue your joint research with Avi Singh. I understand that your expenses will be totally covered by your Department at the University of Milan-Bicocca. Statistics Canada would provide you office space during your stay. Sincerely yours Mike Hidiroglou Director, Statistics Research and Innovation Division Statistics Canada 150 Tunney's Pasture Driveway Ottawa, Ontario K1A 0T6

Page 4: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

MF  vs  Conven)onal  Survey  

•  Unique  List    

•  Complete  coverage  

•  Up-­‐to-­‐date  

Perfect  frame  

UA B C Q > 2 U1 · · ·UQ

1

Page 5: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

MF  vs  Conven)onal  Survey  

•  Under-­‐coverage  (Ex.  Par)al  list)  

•  Over-­‐coverage  (Ex  Rare  Pop’s)  

•  Unavailable  direct  frame  (Ex.    Difficult-­‐to-­‐Sample-­‐Pop’s,  Hidden,  Elusive,  Mobile  …)  

Perfect  frame   Imperfect  frame  

UA B C Q > 2 U1 · · ·UQ

1

Page 6: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

MF  vs  Conven)onal  Survey  

Conven)onal  unique-­‐frame  survey    

DF  &  MF  survey    

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

•     •  Par)al    

•  Overlapping  (unknown)    

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

Page 7: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

MF  Advantages  &  Applica)ons  

•  @Selec)on  stage  of  the  survey  

•  Improving  Coverage  &  Response  rate  

•  Dealing  with  Under-­‐Coverage  Bias  in  telephone  surveys  

•  Flexibility  &  Blended  survey  modes  

•  Cost  effec)ve  

                                       

 

         

Page 8: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Surveying  difficult-­‐to-­‐sample  pop’s  (Hidden,  Elusive,  Mobile…)  

•   Iacan  &  Dennis  (1993):  Homeless  Survey,  USA,  Sampling  on  loca)on,  3-­‐frames  setup  1)Homeless  shelter;  2)  Soup  kitchen;  3)  Street  loca)ons  

 

•   Eurostat  (2000)  Italian  Country  Report:  Interna)onal  Migra)on  Survey  (legal  &  illegal),  “Center  sampling”    

           Etnic  shops  &  resturants;  unofficial  medical  facili)es;  specific                                              city  areas  (Chinatown,  Central  Rail  Sta)on…)    

 

Page 9: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Surveying  difficult-­‐to-­‐sample  pop’s  (Hidden,  Elusive,  Mobile…)  

•  ISTAT  (2011-­‐12):  1st  Italian  Survey  on  homeless  people  (research  project  2009),  Indirect    Sampling  (related  to    MF  setup)  

 •  (2012)  DF  survey  to  assess  )me–  and  space–related  changes  of  the  colonizing  wolf  popula)on  in  France  (Office  na/onal  de  la  chasse  et  de  la  faune  sauvage,  Applied  Research  Unit  on  Predator  and  Depredator  species,  Parc  Micropolis,  F-­‐05000  Gap,  France)  

   

Page 10: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Poten)al  &  Improving  Precision  

•  <<As  the  U.S.,  Canada,  and  other  na)ons  grow  in  diversity,  different  sampling  frames  may  beier  capture  subgroups  of  the  popula)on.  […]  We  an)cipate  that  modular  sampling  designs  using  mul)ple  frames  will  be  widely  used  in  the  future.>>    (Lohr  &  Rao,  JASA  2006)  

Page 11: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Dealing  with  Under-­‐coverage  Bias  in  Telephone  Surveys  

•  Households  with  cell  phone  only  not  included  in  the  tradi)onal  frame  for  landline  telephone  survey  

•  Emerging  evidence  of  significant  differences  between  household  with  or/and    without  landline  

 

Page 12: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Dealing  with  Under-­‐coverage  Bias  in  Telephone  Surveys  Combining landline and mobile phone samples: A dual frame approach 9

Table 1: Percent of households with no landlines and individuals with mobile phones, results from

the European Social Survey Round 4, weighted data, countries in alphabetical order

Country No landline phone in household (in %)

Personally have mobile phone (in %)

Belgium 23.1 89.4

Bulgaria 43.5 72.2

Croatia 12.5 85.2

Cyprus 10.5 85.2

Czech Republic 73.3 92.0

Denmark 20.1 92.5

Estonia 42.6 90.2

Finland 65.6 95.2

France 7.6 82.6

Germany 6.1 84.9

Greece 15.8 90.8

Hungary 46.2 79.5

Israel 12.3 89.9

Latvia 56.5 82.0

Netherlands 12.3 91.3

Norway 28.1 96.6

Poland 34.1 80.2

Portugal 35.0 81.7

Romania 59.4 77.4

Russian Federation 48.3 71.7

Slovakia 45.2 85.6

Slovenia 10.2 87.9

Spain 24.7 82.0

Sweden 8.9 92.0

Switzerland 10.2 88.6

Turkey 38.3 66.7

Ukraine 33.2 77.1

United Kingdom 11.7 85.3

In North America, Canada shows a slower trend with only 8% of CPO-HH as of December 2008 (Statis-

tics Canada, 2009). On the other hand, the United States is following the European trend (Blumberg &

Luke, 2009). In the first half of 2009, 22.7 percent of all households were cell phone-only households.

More importantly, differences between cell phone-only households and non cell phone-only households

Combining landline and mobile phone samples: A dual frame approach 9

Table 1: Percent of households with no landlines and individuals with mobile phones, results from

the European Social Survey Round 4, weighted data, countries in alphabetical order

Country No landline phone in household (in %)

Personally have mobile phone (in %)

Belgium 23.1 89.4

Bulgaria 43.5 72.2

Croatia 12.5 85.2

Cyprus 10.5 85.2

Czech Republic 73.3 92.0

Denmark 20.1 92.5

Estonia 42.6 90.2

Finland 65.6 95.2

France 7.6 82.6

Germany 6.1 84.9

Greece 15.8 90.8

Hungary 46.2 79.5

Israel 12.3 89.9

Latvia 56.5 82.0

Netherlands 12.3 91.3

Norway 28.1 96.6

Poland 34.1 80.2

Portugal 35.0 81.7

Romania 59.4 77.4

Russian Federation 48.3 71.7

Slovakia 45.2 85.6

Slovenia 10.2 87.9

Spain 24.7 82.0

Sweden 8.9 92.0

Switzerland 10.2 88.6

Turkey 38.3 66.7

Ukraine 33.2 77.1

United Kingdom 11.7 85.3

In North America, Canada shows a slower trend with only 8% of CPO-HH as of December 2008 (Statis-

tics Canada, 2009). On the other hand, the United States is following the European trend (Blumberg &

Luke, 2009). In the first half of 2009, 22.7 percent of all households were cell phone-only households.

More importantly, differences between cell phone-only households and non cell phone-only households

Page 13: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Dealing  with  Under-­‐coverage  Bias  in  Telephone  Surveys  

•  GESIS-­‐Leibniz  Ins)tut  für  Sozialwissenschaqen  (2011):    CELLA1,  German  Research  Funda)on,  DF  telephone  survey  (Landline&Cell)  

•  (2014)  Australian  Gambling  DF  telephone  survey:                <<[…]  reliance  on  a  tradi)onal  landline  telephone  sampling              approach  effec)vely  excludes  dis)nct  subgroups  of  the  popula)on  […]>>  

Page 14: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Dealing  with  Under-­‐coverage  Bias  in  Telephone  Surveys  

•  (2002,  Brick  et  al)  Survey  of  America’s  Facili)es,  DF  setup  RDD  households  with  landline  telephone  +  area  frame  of  households  without  landline  telephone  

•  (2011)  USA  Behavioral  Risk  Factor  Surveillance  System  <<[…]  documented  that  samples  from  both  frames  are  needed  to  avoid  bias  in  key  es)mates[…]>>    

Page 15: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

•  Avoiding  Screenings,  before  (MF  è  unique-­‐frame)  and  aqer  sampling  (de-­‐duplica)on)  

 

•  Rare  Popula)ons:  surveying  rare  traits  with  eligible  units  confused  in  a  larger  frame  (Ex:  WHO  TB  Prevalence  Survey,  posi)vity  to  TB  @na)onal  level)      

Cost  Effec)ve  

Page 16: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

•  Complete  Area  Frame  +  supplementary  List  Frame  (Ex:  2014  FAO  guidelines  for  Agricultural  Sta)s)cs)    

Cost  Effec)ve  

UA B C L Q > 2 U1 · · ·UQ

1

UA B C L Q > 2 U1 · · ·UQ

1

•       Complete  &  naturally  updated    

•  Expensive  to  sample  (local  visit)    

•       Par)al,  overlapping  &  possibly  quickly  out-­‐of-­‐date  

•  cheaper  &  easier  to  sample  

UA B C L Q > 2 U1 · · ·UQ

1

UA B C L Q > 2 U1 · · ·UQ

1

Page 17: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

•  ≠  Sampling  Design  in  ≠  Frames    •  ≠  Collec)on  Mode  in  ≠  Frames      Ex:  Web  survey  with  ≠  different  webpages;    survey  combining  telephone,  email  and  face-­‐to-­‐face  interviews  

Flexibility  &  Blended  Survey  Mode  

Page 18: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

MF  Challenges  &  Issues  

UA B C L Q > 2 U1 · · ·UQ

1

•  @es)ma)on  stage  of  the  survey  

•  Final  sample  =                          independent  frame-­‐samples    

•  Overlap  è  mul)ple  selec)on  opportuni)es  of  the  same  units  into  the  final  sample  

1s3s

2s

è   combining  data  from    the            independent  random  samples  UA B C L Q > 2 U1 · · ·UQ

2

1

Page 19: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

MF  Challenges  &  Issues  

1.  Increased  inclusion  probabili)es  for  unit      overlap  whether  or  not  the  unit  is  in  fact  selected  in  the  final  sample  

2.  Possibly  overlapping  frame-­‐samples  (duplicated  unit)  whether  or  not  duplica)ons  actually  occur  in  the  final  sample  

èEfficient  MF  es)ma)on  requires  addi)onal  frame-­‐level  info  to  be  collected  beside  the  study  variable  in  order  to  address  such  issues                                    

         

UA B C L Q > 2 U1 · · ·UQ

2

1

Page 20: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

First  proposal:  (1962)  Hartley  

•  DF  •  Op)mal  es)mator  

•  Frame-­‐level  info:  Domain  membership:  è  domain  classifica)on  (post-­‐stra)fica)on)  

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

“To  which  frames”    

Page 21: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Op)mal  Hartley  es)mator  

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2Ayi +

X

i2ab

yi +X

i 2 byi

↵H = min↵2(0,1)

V⇣YH

1

•  Unbiased  for  pop  total    

•  Op)mal  

•  Approx  unbiased  &  sub-­‐op)mal  in  prac)ce  

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

1

Page 22: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Several  DF  es)mators  followed…  

•  Under  ≠  approaches  •  DF  •  Increasing  complexity  &  frame-­‐level  info  needs  

Page 23: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Several  DF  es)mators  followed…  

•  ML  &  Regression  for  SRS  (Fuller&Burmeister,  1972)    

•  Pseudo  ML  for  complex  design  (Skinner&Rao,  1996;  Lohr&Rao,  2006)  

•  Modified  regession  (Singh&Wu  1996)  

•  Empirical  ML  (Rao&Wu,  2010)  

Page 24: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

(1986)  Kalton-­‐Anderson  es)mator  

•  Unbiased  

•  Empirical  evidence  of  High  Efficiency  

•  More  frame-­‐level  info  needed  (Domain  classifica)on  +  inclusion  probability  from  every  frame)  

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

YKA = Ya(A) +⇡A

⇡A + ⇡BYab(A) +

⇡B⇡A + ⇡B

Yab(B) + Yb(B)

1

Page 25: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Main  Issues  &  Challenges  limi)ng  applica)on  

•  Frame-­‐level  info  needs  •  Exten)on  DF  èMF    (Nota)on)  

•  Anali)cal&Computa)onal  complexity  

•  Assessing  accuracy  via  variance  es)ma)on  (&  CI)  

Page 26: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Mul)plicity  approach  to  MF  es)ma)on  

     (Meca4  2007;  Singh&Meca4  2011;  Meca4&Singh  2014)  •  Simplified  Nota)on  

•  Simple  Mul)plicity  MF  es)mator  

•  Basic  frame-­‐level  info  needed  

•  Unbiased  exact  variance  es)ma)on  

Page 27: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Mul)plicity  approach  to  MF  es)ma)on  

•  Generalized  MF  Mul)plicity  Es)mators  (GMHT)  •  Simplifying  &  Unifying  DF/MF  approaches  &  es)mators  

Page 28: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

From  the  (complex)  alphabe)cal  nota)on  ….  

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

YKA = Ya(A) +⇡A

⇡A + ⇡BYab(A) +

⇡B⇡A + ⇡B

Yab(B) + Yb(B)

ac bc abcsa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

YKA = Ya(A) +⇡A

⇡A + ⇡BYab(A) +

⇡B⇡A + ⇡B

Yab(B) + Yb(B)

ac bc abcsa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

YKA = Ya(A) +⇡A

⇡A + ⇡BYab(A) +

⇡B⇡A + ⇡B

Yab(B) + Yb(B)

ac bc abcsa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

ˆYH =

ˆYa(A) + ↵HˆYab(A) + (1� ↵H

)

ˆYab(B) +ˆYb(B)

Y =

X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H= min

↵2(0,1)V⇣ˆYH

ˆYKA = Ya(A) +⇡A

⇡A + ⇡BˆYab(A) +

⇡B⇡A + ⇡B

ˆYab(B) +ˆYb(B)

c ac bc abcsA sB sC

sa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

Q Frames ! U1 · · ·Uq · · ·UQ

Frame size ! N1 · · ·Nq · · ·NQ

Dq Domain each ! Ud(q), d = 1 . . . Dq

Q Frame-samples ! s1 · · · sq · · · sQFrame-sample size (fixed) ! n1 · · ·nq, · · ·nQ

Dq Domain-samples each ! sd(q), d = 1 . . . Dq

Domain-sample size (random) ! nd(q), d = 1 . . . Dq

1

Page 29: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

From  the  (complex)  alphabe)cal  nota)on  ….  

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C Q > 2 U1 · · ·UQ

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

YKA = Ya(A) +⇡A

⇡A + ⇡BYab(A) +

⇡B⇡A + ⇡B

Yab(B) + Yb(B)

ac bc abcsa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

YKA = Ya(A) +⇡A

⇡A + ⇡BYab(A) +

⇡B⇡A + ⇡B

Yab(B) + Yb(B)

ac bc abcsa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

YKA = Ya(A) +⇡A

⇡A + ⇡BYab(A) +

⇡B⇡A + ⇡B

Yab(B) + Yb(B)

ac bc abcsa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

YH = Ya(A) + ↵H Yab(A) + (1� ↵H)Yab(B) + Yb(B)

Y =X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H = min↵2(0,1)

V⇣YH

YKA = Ya(A) +⇡A

⇡A + ⇡BYab(A) +

⇡B⇡A + ⇡B

Yab(B) + Yb(B)

ac bc abcsA sB sC

sa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

ˆYH =

ˆYa(A) + ↵HˆYab(A) + (1� ↵H

)

ˆYab(B) +ˆYb(B)

Y =

X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H= min

↵2(0,1)V⇣ˆYH

ˆYKA = Ya(A) +⇡A

⇡A + ⇡BˆYab(A) +

⇡B⇡A + ⇡B

ˆYab(B) +ˆYb(B)

c ac bc abcsA sB sC

sa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

Q Frames ! U1 · · ·Uq · · ·UQ

Frame size ! N1 · · ·Nq · · ·NQ

Dq Domain each ! Ud(q), d = 1 . . . Dq

Q Frame-samples ! s1 · · · sq · · · sQFrame-sample size (fixed) ! n1 · · ·nq, · · ·nQ

Dq Domain-samples each ! sd(q), d = 1 . . . Dq

Domain-sample size (random) ! nd(q), d = 1 . . . Dq

1

Page 30: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

…  To  a  (simpler)  indexed  nota)on  

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

ˆYH =

ˆYa(A) + ↵HˆYab(A) + (1� ↵H

)

ˆYab(B) +ˆYb(B)

Y =

X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H= min

↵2(0,1)V⇣ˆYH

ˆYKA = Ya(A) +⇡A

⇡A + ⇡BˆYab(A) +

⇡B⇡A + ⇡B

ˆYab(B) +ˆYb(B)

c ac bc abcsA sB sC

sa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

Q Frames ! U1 · · ·Uq · · ·UQ

Frame size ! N1 · · ·Nq · · ·NQ

Dq Domains each ! Ud(q), d = 1 . . . Dq

Q Frame-samples ! s1 · · · sq · · · sQFrame-sample size (fixed) ! n1 · · ·nq, · · ·nQ

Dq Domain-samples each ! sd(q), d = 1 . . . Dq

Domain-sample size (random) ! nd(q), d = 1 . . . Dq

1

Page 31: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Mul)plicity:  a  simple  no)on  for  MF  es)ma)on  

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

ˆYH =

ˆYa(A) + ↵HˆYab(A) + (1� ↵H

)

ˆYab(B) +ˆYb(B)

Y =

X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H= min

↵2(0,1)V⇣ˆYH

ˆYKA = Ya(A) +⇡A

⇡A + ⇡BˆYab(A) +

⇡B⇡A + ⇡B

ˆYab(B) +ˆYb(B)

c ac bc abcsA sB sC

sa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

Q Frames ! U1 · · ·Uq · · ·UQ

Frame size ! N1 · · ·Nq · · ·NQ

Dq Domains each ! Ud(q), d = 1 . . . Dq

Q Frame-samples ! s1 · · · sq · · · sQFrame-sample size (fixed) ! n1 · · ·nq, · · ·nQ

Dq Domain-samples each ! sd(q), d = 1 . . . Dq

Domain-sample size (random) ! nd(q), d = 1 . . . Dq

mi = # {Uq 3 i} =

QX

q=1

1i(q)

md = #

�Uq ◆ Ud(·)

i 2 Ud(q)

mi ⌘ md

1

 •  Unit  mul)plicity:    •  Domain  mul)plicity:      

 

“How  many  frames”    

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

ˆYH =

ˆYa(A) + ↵HˆYab(A) + (1� ↵H

)

ˆYab(B) +ˆYb(B)

Y =

X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H= min

↵2(0,1)V⇣ˆYH

ˆYKA = Ya(A) +⇡A

⇡A + ⇡BˆYab(A) +

⇡B⇡A + ⇡B

ˆYab(B) +ˆYb(B)

c ac bc abcsA sB sC

sa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

Q Frames ! U1 · · ·Uq · · ·UQ

Frame size ! N1 · · ·Nq · · ·NQ

Dq Domains each ! Ud(q), d = 1 . . . Dq

Q Frame-samples ! s1 · · · sq · · · sQFrame-sample size (fixed) ! n1 · · ·nq, · · ·nQ

Dq Domain-samples each ! sd(q), d = 1 . . . Dq

Domain-sample size (random) ! nd(q), d = 1 . . . Dq

mi = # {Uq 3 i} =

QX

q=1

1i(q)

md = #

�Uq ◆ Ud(·)

i 2 Ud(q)

mi ⌘ md

1

Page 32: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Mul)plicity:  a  simple  no)on  for  MF  es)ma)on  

 •  Rela)on:            all                                    share  the  same                                                      mul)plicity    è          

•  Pop  total:      

 

 

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

ˆYH =

ˆYa(A) + ↵HˆYab(A) + (1� ↵H

)

ˆYab(B) +ˆYb(B)

Y =

X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H= min

↵2(0,1)V⇣ˆYH

ˆYKA = Ya(A) +⇡A

⇡A + ⇡BˆYab(A) +

⇡B⇡A + ⇡B

ˆYab(B) +ˆYb(B)

c ac bc abcsA sB sC

sa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

Q Frames ! U1 · · ·Uq · · ·UQ

Frame size ! N1 · · ·Nq · · ·NQ

Dq Domains each ! Ud(q), d = 1 . . . Dq

Q Frame-samples ! s1 · · · sq · · · sQFrame-sample size (fixed) ! n1 · · ·nq, · · ·nQ

Dq Domain-samples each ! sd(q), d = 1 . . . Dq

Domain-sample size (random) ! nd(q), d = 1 . . . Dq

mi = # {Uq 3 i} =

QX

q=1

1i(q)

md = #

�Uq ◆ Ud(·)

i 2 Ud(q)

mi ⌘ md

1

UA B C L Q > 2 U1 · · ·UQ

2a b ab sA sB sa(A) sab(A) sb(B) sab(B)

ˆYH =

ˆYa(A) + ↵HˆYab(A) + (1� ↵H

)

ˆYab(B) +ˆYb(B)

Y =

X

i2ayi +

X

i2ab

yi +X

i2b

yi

↵H= min

↵2(0,1)V⇣ˆYH

ˆYKA = Ya(A) +⇡A

⇡A + ⇡BˆYab(A) +

⇡B⇡A + ⇡B

ˆYab(B) +ˆYb(B)

c ac bc abcsA sB sC

sa(A) sb(B) sc(C)

sab(A) sab(B) sbc(C)

sac(A) sbc(B) sac(C)

sabc(A) sabc(B) sabc(C)

Q Frames ! U1 · · ·Uq · · ·UQ

Frame size ! N1 · · ·Nq · · ·NQ

Dq Domains each ! Ud(q), d = 1 . . . Dq

Q Frame-samples ! s1 · · · sq · · · sQFrame-sample size (fixed) ! n1 · · ·nq, · · ·nQ

Dq Domain-samples each ! sd(q), d = 1 . . . Dq

Domain-sample size (random) ! nd(q), d = 1 . . . Dq

mi = # {Uq 3 i} =

QX

q=1

1i(q)

md = #

�Uq ◆ Ud(·)

i 2 Ud(q)

mi ⌘ md

1Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

2

Page 33: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Simple  Mul)plicity  MF  es)mator    •  Conven)onal  (unbiased)  unique-­‐frame  HT  es)mator:  

 •  Simple  Mul)plicity  (unbiased)  MF  es)mator:  

 

 

 

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

2

Page 34: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Exact  Unbiased  Variance  es)ma)on  

•  Fixed  frame-­‐sample  sizes    

•  Customary  SYG  form  

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yj

mj ⇡j(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3 yi, i = 1 . . . 12

2

Page 35: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

GMHT:  a  class  of  MF  es)mator    •  Generalized  mul)plicity-­‐adjustment    

 •  GMHT  class:  

 

 

 

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

↵i(q) 2 (0, 1),QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yialphai(q) ⇡i(q)

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

↵i(q) 2 (0, 1),QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

2

Page 36: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Simplified  &  Unified  MF  es)ma)on      •                                                         with          

     

 

 

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

2

Page 37: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

1

2

34

5

67

89

10  11  

12  

123456789

10  

11  

12  

units   k€  monthly  income  

1.23.54.8

2.3

2.61.8

0.8

5.31.51.72.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

3

1.23.5

4.8

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

3

1.23.5

4.2

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

s1 ! s2 ! s3 !i yi mi ⇡i(1)

yimi ⇡i(1)

9 1.5 1 2/6 4.5

4 2.3 3 2/6 2.3

3

Page 38: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  

1.23.54.8

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

i yi mi ⇡i(1)yi

mi ⇡i(1)

9 1.5 1 2/6 4.5

4 2.3 3 2/6 2.3

3

1.23.54.8

2.32.61.80.85.31.51.72.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

i yi mi ⇡i(1)yi

mi ⇡i(1)

9 1.5 1 2/6 4.5

4 2.3 3 2/6 2.3

3

i yi mi ⇡i(q)yi

mi ⇡i(q)

9 1.5 1 2/6 4.5

4 2.3 3 2/6 2.3

2 3.5 2 2/6 5.25

8 5.3 2 2/6 7.95

10 1.7 1 3/7 3.97

6 1.8 2 3/7 2.1

7 0.8 3 3/7 0.62

= 26.69

4

1.23.5

4.2

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

s1 !

s2 !

s3 !

3

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

1

2

34

5

67

89

10  11  

12  

Page 39: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  •  SM  es)mator    è  basic  info:  “how  many  frames    

i yi mi ⇡i(q)yi

mi ⇡i(q)

9 1.5 1 2/6 4.5

4 2.3 3 2/6 2.3

2 3.5 2 2/6 5.25

8 5.3 2 2/6 7.95

10 1.7 1 3/7 3.97

6 1.8 2 3/7 2.1

7 0.8 3 3/7 0.62

= 26.69

4

1.23.5

4.2

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

s1 !

s2 !

s3 !

3

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

1

2

34

5

67

89

10  11  

12  

Page 40: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

2

•  SM  es)mator:  

i yi mi ⇡i(1)yi

mi ⇡i(1)

9 1.5 1 2/6 4.5

4 2.3 3 2/6 2.3

i yi mi ⇡i(2)yi

mi ⇡i(2)

2 3.5 2 2/6 5.25

8 5.3 2 2/6 7.95

i yi mi ⇡i(3)yi

mi ⇡i(3)

10 1.7 1 3/7 3.97

6 1.8 2 3/7 2.1

7 0.8 3 3/7 0.62

= 26.69

4

i yi mi ⇡i(q)yi

mi ⇡i(q)

9 1.5 1 2/6 4.5

4 2.3 3 2/6 2.3

2 3.5 2 2/6 5.25

8 5.3 2 2/6 7.95

10 1.7 1 3/7 3.97

6 1.8 2 3/7 2.1

7 0.8 3 3/7 0.62

= 26.69

4

1.23.5

4.2

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

s1 !

s2 !

s3 !

3

Page 41: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  •  Other  MF  es)mators    è  more  info:  “to  which  frames”    

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

1

2

34

5

67

89

10  11  

12  

Page 42: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  •  Other  MF  es)mators    è  more  info:  “to  which  frames    

•  (sample)  domain  classifica)on  

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

246

7

89

10  

Page 43: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  •  Other  MF  es)mators    è  more  info:  “to  which  frames    

1.23.5

4.2

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

s1 !

s2 !

s3 !

3

i yi domain ⇡i(q)

⇣↵KAi(q)

⌘�1yi

↵KAi(q) ⇡i(q)

9 1.5 U1(1) 2/6 1 4.5

4 2.3 U1T

U2T

U3 2/6

⇡i(1)

⇡i(1)+⇡i(1)+⇡i(3)= 0.30 2.1

2 3.5 U2T

U3 2/6

⇡i(2)

⇡i(2)+⇡i(3)= 0.44 7.95

8 5.3 U2T

U1 2/6

⇡i(2)

⇡i(2)+⇡i(1)= 0.50 4.59

10 1.7 U1(3) 3/7 1 3.97

6 1.8 U3T

U1 3/7

⇡i(3)

⇡i(3)+⇡i(1)= 0.56 2.36

7 0.8 U3T

U1T

U2 3/7

⇡i(3)

⇡i(3)+⇡i(1)+⇡i(2)= 0.39 0.73

= 26.20

5

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

246

7

89

10  

Page 44: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  •  KA  es)mator    è  “to  which  frames”&  all  prob    

1.23.5

4.2

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

s1 !

s2 !

s3 !

3

i yi domain ⇡i(q)

⇣↵KAi(q)

⌘�1yi

↵KAi(q) ⇡i(q)

9 1.5 U1(1) 2/6 1 4.5

4 2.3 U1T

U2T

U3 2/6

⇡i(1)

⇡i(1)+⇡i(1)+⇡i(3)= 0.30 2.1

2 3.5 U2T

U3 2/6

⇡i(2)

⇡i(2)+⇡i(3)= 0.44 7.95

8 5.3 U2T

U1 2/6

⇡i(2)

⇡i(2)+⇡i(1)= 0.50 4.59

10 1.7 U1(3) 3/7 1 3.97

6 1.8 U3T

U1 3/7

⇡i(3)

⇡i(3)+⇡i(1)= 0.56 2.36

7 0.8 U3T

U1T

U2 3/7

⇡i(3)

⇡i(3)+⇡i(1)+⇡i(2)= 0.39 0.73

= 26.20

5

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

U1 U2 U3

2

246

7

89

10  

Page 45: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

2

Y =

QX

q=1

DqX

d=1

Yd(q) =

QX

q=1

NqX

i=1

yimi

ˆYHT =

X

i2s

yi⇡i

ˆYSM =

QX

q=1

X

i2sq

yimi ⇡i(q)

Q = 1 ) mi = 1 ) ˆYSM ⌘= YHT

ˆV⇣ˆYSM

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

mi ⇡i(q)� yi

mi ⇡i(q)

◆2

↵i(q) 2 (0, 1),

QX

q=1

↵i(q) = 1

ˆYGMHT =

QX

q=1

X

i2sq

yi↵i(q) ⇡i(q)

ˆYKA 2 GMHT

↵KAi(q) =

⇡i(q)

PDq

d=1 1i2Ud(q)PQq0=1 ⇡i(q0)1i2Ud(q0)

!�1

ˆYKA =

QX

q=1

X

i2sq

yi↵KAi(q) ⇡i(q)

2

i yi domain ⇡i(q)⇣↵KAi(q)

⌘�1yi

↵KAi(q) ⇡i(q)

9 1.5 U1(1) 2/6 1 1.5

4 2.3 U1TU2

TU3 2/6

⇡i(1

⇡i(1)+⇡i(1)+⇡i(3)

= 0.30 2.3

2 3.5 U2TU3 2/6

⇡i(2)

⇡i(2)+⇡i(3)= 0.44 3.5

8 5.3 U2TU1 2/6

⇡i(2)

⇡i(2)+⇡i(1)= 0.50 3.5

10 1.7 U1(3) 3/7 1 1.7

6 1.8 U3TU1 3/7

⇡i(3)

⇡i(3)+⇡i(1)= 0.56 1.8

7 0.8 U3TU1

TU2 3/7

⇡i(3)

⇡i(3)+⇡i(1)+⇡i(2)= 0.39 0.8

= 26.20

5

1.23.5

4.2

2.3

2.61.8

0.8

5.3

1.51.7

2.1

3.2

N = 12

Y = 30.2

N1 = 6

N2 = 6

N3 = 7

SRS n = 7 n1 = 2 n2 = 2 n3 = 3

s1 !

s2 !

s3 !

3

i yi domain ⇡i(q)

⇣↵KAi(q)

⌘�1yi

↵KAi(q) ⇡i(q)

9 1.5 U1(1) 2/6 1 4.5

4 2.3 U1T

U2T

U3 2/6

⇡i(1)

⇡i(1)+⇡i(1)+⇡i(3)= 0.30 2.1

2 3.5 U2T

U3 2/6

⇡i(2)

⇡i(2)+⇡i(3)= 0.44 7.95

8 5.3 U2T

U1 2/6

⇡i(2)

⇡i(2)+⇡i(1)= 0.50 4.59

10 1.7 U1(3) 3/7 1 3.97

6 1.8 U3T

U1 3/7

⇡i(3)

⇡i(3)+⇡i(1)= 0.56 2.36

7 0.8 U3T

U1T

U2 3/7

⇡i(3)

⇡i(3)+⇡i(1)+⇡i(2)= 0.39 0.73

= 26.20

5

Page 46: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  •  (unbiased)  Variance  Es)ma)on  

i yi domain ⇡i(q)

⇣↵KAi(q)

⌘�1yi

↵KAi(q) ⇡i(q)

9 1.5 U1(1) 2/6 1 4.5

4 2.3 U1T

U2T

U3 2/6

⇡i(1)

⇡i(1)+⇡i(1)+⇡i(3)= 0.30 2.1

2 3.5 U2T

U3 2/6

⇡i(2)

⇡i(2)+⇡i(3)= 0.44 7.95

8 5.3 U2T

U1 2/6

⇡i(2)

⇡i(2)+⇡i(1)= 0.50 4.59

10 1.7 U1(3) 3/7 1 3.97

6 1.8 U3T

U1 3/7

⇡i(3)

⇡i(3)+⇡i(1)= 0.56 2.36

7 0.8 U3T

U1T

U2 3/7

⇡i(3)

⇡i(3)+⇡i(1)+⇡i(2)= 0.39 0.73

= 26.20

ˆV⇣ˆYGMHT

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

↵i(q) ⇡i(q)� yj

↵j(q) ⇡j(q)

◆2

⇡ij(q) =nq(nq � 1)

Nq(Nq � 1)

5

•  SRS  joint  inclusion  probability  :  

i yi domain ⇡i(q)

⇣↵KAi(q)

⌘�1yi

↵KAi(q) ⇡i(q)

9 1.5 U1(1) 2/6 1 4.5

4 2.3 U1TU2

TU3 2/6

⇡i(1)

⇡i(1)+⇡i(1)+⇡i(3)= 0.30 2.1

2 3.5 U2TU3 2/6

⇡i(2)

⇡i(2)+⇡i(3)= 0.44 7.95

8 5.3 U2TU1 2/6

⇡i(2)

⇡i(2)+⇡i(1)= 0.50 4.59

10 1.7 U1(3) 3/7 1 3.97

6 1.8 U3TU1 3/7

⇡i(3)

⇡i(3)+⇡i(1)= 0.56 2.36

7 0.8 U3TU1

TU2 3/7

⇡i(3)

⇡i(3)+⇡i(1)+⇡i(2)= 0.39 0.73

= 26.20

ˆV⇣ˆYGMHT

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

↵i(q) ⇡i(q)� yj

↵j(q) ⇡j(q)

◆2

⇡ij(q) =nq(nq � 1)

Nq(Nq � 1)

5

Page 47: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  

i yi domain ⇡i(q)

⇣↵KAi(q)

⌘�1yi

↵KAi(q) ⇡i(q)

9 1.5 U1(1) 2/6 1 4.5

4 2.3 U1TU2

TU3 2/6

⇡i(1)

⇡i(1)+⇡i(1)+⇡i(3)= 0.30 2.1

2 3.5 U2TU3 2/6

⇡i(2)

⇡i(2)+⇡i(3)= 0.44 7.95

8 5.3 U2TU1 2/6

⇡i(2)

⇡i(2)+⇡i(1)= 0.50 4.59

10 1.7 U1(3) 3/7 1 3.97

6 1.8 U3TU1 3/7

⇡i(3)

⇡i(3)+⇡i(1)= 0.56 2.36

7 0.8 U3TU1

TU2 3/7

⇡i(3)

⇡i(3)+⇡i(1)+⇡i(2)= 0.39 0.73

= 26.20

ˆV⇣ˆYGMHT

⌘=

QX

q=1

X

i<j2sq

⇡i(q) ⇡j(q) � ⇡ij(q)⇡ij(q)

✓yi

↵i(q) ⇡i(q)� yj

↵j(q) ⇡j(q)

◆2

⇡ij(q) =nq(nq � 1)

Nq(Nq � 1)

⇡ij(q)⇡i(q) ⇡j(q)�⇡ij(q)

⇡ij(q)

⇣yi

↵i(q) ⇡i(q)� yj

↵j(q) ⇡j(q)

⌘2product

SMs1 ! 2/30 0.67 4.84 3.23

s2 ! 2/30 0.67 7.29 4.86

s3 ! 6/49 0.29 3.48 1

11.19 3.2

2.18 0.62

KAs1 ! 2/30 0.67 5.76 3.84

s2 ! 2/30 0.67 11.26 7.51

s3 ! 6/49 0.29 2.57 0.74

10.47 2.99

2.66 0.76

5

ˆV⇣ˆYSM

⌘= 12.90(SE = 3.59)

ˆV⇣ˆYKA

⌘= 15.84(SE = 3.98)

6

ˆV⇣ˆYSM

⌘= 12.90(SE = 3.59)

ˆV⇣ˆYKA

⌘= 15.84(SE = 3.98)

6

Page 48: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Numerical  Illustra)on  

ˆYSM = 26, 69 ˆV = 12.90 (SE = 3.59)

ˆYKA = 26, 20 ˆV = 15.84 (SE = 3.98)

6

Page 49: Dual%and%Mul)ple%Frame%Survey%% - European Commission Frame Survey.pdf · Combining landline and mobile phone samples: A dual frame approachTelephoneSurveys 9 % Table 1: Percent of

Q&A  

Ques)ons  ?