1 attitudinal segmentation december 2008 © 2008 tns uk limited. all rights reserved tns job number:...
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1
Attitudinal segmentationDecember 2008
© 2008 TNS UK Limited. All rights reservedTNS Job Number: 181283
TakingTaking PPart art 20082008
2
ContentsContents
Attitude statements – mean scores
Distribution of population by segment
Segment 1 – Time Poor
Segment 2 – Prudent Participants
Segment 3 – Restricted
Segment 4 – Opting Out
Segment 5 – Free & Easy
Segment 6 – Experienced Seekers
Summary – Engagement
Summary – Interest v Ability
Appendix – Segmentation method
3
Attitudes statements– mean scoresAttitudes statements– mean scores
4.09
4.06
3.86
3.77
3.25
3.14
2.43
2.26
2.00
1.83
3.41
I like to learn and experience new things in my leisure time
Value for money is a high priority for me when I am decidingwhat to do in my leisure time
The needs of my family or other members of my householdtake priority when I am planning how to spend my leisure time
Attending and participationg in arts and cultural activities helpsenrich the quality of my life
I would attend more arts and cultural performances if they tookplace closer to where I live
If there were more arts events with better access and facilitiesfor me, I would go more often
It's difficult for me to find time to take part in or attend arts andcultural activities
Spending my time attending or participating in arts and culturalactivities is of little interest to me
I have difficulty finding information about arts and culturalactivities which I can attend
I am interested in attending more arts and cultural events butfind it difficult because of my age, a disability or long term
I feel out of place in an art gallery, museum or theatre
1= disagree strongly - 5 = agree strongly1= disagree strongly - 5 = agree stronglyBase: 2110
At this ‘overall’ level, most respondents like to learn and experience new things in their
leisure time and value for money is a priority.
At this ‘overall’ level, most respondents like to learn and experience new things in their
leisure time and value for money is a priority.
4
Distribution within populationDistribution within population
Cluster analysis segments the
population according to their responses to the
attitude statements.
Cluster analysis segments the
population according to their responses to the
attitude statements.
Each segment has been given a name
and profiled to identify
demographic and behavioural traits.
Each segment has been given a name
and profiled to identify
demographic and behavioural traits.
23%
17%
17%
14%
14%
17%
Segment 1
Segment 2
Segment 3
Segment 4
Segment 5
Segment 6 ‘Time Poor’
‘Prudent Participants’
‘Restricted’
‘Opting Out’
‘Free’
‘ExperiencedSeekers’
17%
5
Segment 1 – ‘Time Poor’ - 21% of populationSegment 1 – ‘Time Poor’ - 21% of population
Difficult to find time to take part in or attend arts and cultural activities
The needs of family come first when planning leisure time
Would attend more arts and cultural events if closer to home, easier access
Like to learn and experience new things in leisure time
Value for money is important when deciding what to do in leisure time
Slightly higher than averageattendance & participation levels esp. cinema.
Slightly higher TV and Radio viewing and listening esp. rock/pop music and films.
High use of Internet including social networking sites.
More likely to be, but not exclusively:
Aged 25 – 44
No disabilities
Full or part time employed
Higher, HNC or HND qualifications
C1C2 socio-economic groups
See graph on next chart for details
6
103104107
135
67118
153158
9457
3613
39
100
135146
2580
100
124105
50
105110114
72
Any attendance or participation
Watch on TV, video or DVD
Listen on radioOn-line activities
16-17
18-24
25-3445-44
45-54
55-6465-74
75+
Any disability
Member of minority ethnic community
Full timePart time
RetiredUnemployed
Full time education
School, HNC or HND
Degree or higher degree
No qualifications
ABC1
C2
DE
Population index = 100
Segment 1 – ‘Time Poor’ - 21% of populationSegment 1 – ‘Time Poor’ - 21% of population
Activity
Age
Disability
Ethnicity
Working status
Highest Qualification
Socio-economic group
7
On-line activities in last 12 months
41%
18%
29%
25%
18%
10%
6%
3%
31%
14%
23%
18%
14%
13%
9%
5%
3%
18%
Purchased tickets for an artsperformance
Purchased and/or downloadedmusic
Used a social networking site
Uploaded video or audio
Purchased/downloaded film/TVprogramme
Bought a work of fiction orpoetryon the Internet
Contributed to an on-line forum/discussion
Contributed/produced an on-lineblog
Subscribed to an RSS feed Family Ties segment
Scottish adult population
Segment 1 – ‘Time Poor’ - 21% of populationSegment 1 – ‘Time Poor’ - 21% of population
Factors influencing choices events attended
68%
65%
42%
26%
63%
57%
31%
26%
15%
14%
Recommendationfrom
friends/family
Reviews inpapers,
magazines, ontelevision, etc.
Information on theInternet
Your experienceof the work ofspecific artists
Chance to seework of artistsyou have neverseen or heardabout much
Will travel an average of 35 miles to attend arts event, slightly longer than population average (32 miles).
8
Segment 1 – ‘Time Poor’ - 21% of populationSegment 1 – ‘Time Poor’ - 21% of population
ACORN groups
5%
5%
5%
4%
7%
5%
3%
11%
4%
3%
0%
3%
8%
19%
10%
10%
0%
4%
5%
7%
2%
6%
4%
2%
15%
5%
2%
0%
5%
9%
18%
9%
6%
0%
A Wealthy Executives
B Affluent Greys
C Flourishing Families
D Prosperous Professionals
E Educated Urbanites
F Aspiring Singles
G Starting Out
H Secure Families
I Settled Suburbia
J Prudent Pensioners
K Asian Communities
L Post Industrial Families
M Blue-collar Roots
N Struggling Families
O Burdened Singles
P High-Rise Hardship
Q Inner City Adversity
Scottish adult population
Time Poor
Compared to adult population, more likely to be in ‘Flourishing Families’, ‘Secure Families’ and
‘Settled Suburbia’ groups.
Compared to adult population, more likely to be in ‘Flourishing Families’, ‘Secure Families’ and
‘Settled Suburbia’ groups.
*Respondent postcodes have been profiled using ACORN (A Classification of Residential Neighbourhoods). For more details see www.caci.co.uk/acorn
9
Segment 2 – ‘Prudent Participants’ -17% of populationSegment 2 – ‘Prudent Participants’ -17% of population
Would attend more arts and cultural events if closer to home, easier access
Value for money is important when deciding what to do in leisure time
Like to learn and experience new things in leisure time
Have time to attend
Higher than averageattendance & participation levels esp. art galleries and museums.
Average TV and Radio viewing and listening esp. plays, variety shows, traditional music.
Fairly low use of Internet and on-line activity.
More likely to be, but not exclusively:
Female
Aged 55+
Retired
A range of levels of affluence and education levels
See graph on next chart for details
10
107100101
88
13373
5974
100136
155150
161
17
6362
163140
100
9382
118
10593
67124
Any attendance or participation
Watch on TV, video or DVD
Listen on radioOn-line activities
16-17
18-24
25-3445-44
45-54
55-6465-74
75+
Any disability
Member of minority ethnic community
Full timePart time
RetiredUnemployed
Full time education
School, HNC or HND
Degree or higher degree
No qualifications
ABC1
C2
DE
Population index = 100Activity
Age
Disability
Ethnicity
Working status
Highest Qualification
Socio-economic group
Segment 2 – ‘Prudent Participants’ -17% of populationSegment 2 – ‘Prudent Participants’ -17% of population
11
On-line activities in last 12 months
30%
12%
17%
16%
12%
9%
3%
2%
31%
14%
23%
18%
14%
13%
9%
5%
3%
12%
Purchased tickets for an artsperformance
Purchased and/or downloadedmusic
Used a social networking site
Uploaded video or audio
Purchased/downloaded film/TVprogramme
Bought a work of fiction or poetryon the Internet
Contributed to an on-line forum/discussion
Contributed/produced an on-lineblog
Subscribed to an RSS feed Prudent Participants segment
Scottish Adult Population
Segment 2 – ‘Prudent Participants’ - 17% of populationSegment 2 – ‘Prudent Participants’ - 17% of population
Factors influencing choices events attended
64%
59%
29%
32%
63%
57%
31%
26%
15%
21%
Recommendationfrom
friends/family
Reviews inpapers,
magazines, ontelevision, etc.
Information on theInternet
Your experienceof the work ofspecific artists
Chance to seework of artistsyou have neverseen or heardabout much
Will travel an average of 32 miles to attend arts event, same as the population average (32 miles).
12
Segment 2 – ‘Prudent Participants’ - 17% of populationSegment 2 – ‘Prudent Participants’ - 17% of population
ACORN groups
5%
5%
5%
4%
7%
5%
3%
11%
4%
3%
0%
3%
8%
19%
10%
10%
0%
5%
3%
4%
3%
7%
4%
3%
10%
2%
3%
0%
4%
9%
20%
9%
14%
0%
A Wealthy Executives
B Affluent Greys
C Flourishing Families
D Prosperous Professionals
E Educated Urbanites
F Aspiring Singles
G Starting Out
H Secure Families
I Settled Suburbia
J Prudent Pensioners
K Asian Communities
L Post Industrial Families
M Blue-collar Roots
N Struggling Families
O Burdened Singles
P High-Rise Hardship
Q Inner City Adversity
Scottish adult population
Prudent Participants
Compared to adult population, more likely to be in less affluent
groups.
Compared to adult population, more likely to be in less affluent
groups.
*Respondent postcodes have been profiled using ACORN (A Classification of Residential Neighbourhoods). For more details see www.caci.co.uk/acorn
13
Segment 3 – ‘Restricted’ - 17% of populationSegment 3 – ‘Restricted’ - 17% of population
Difficulties attending due to age, a disability or long term illness
Feel out of place in an art gallery or museum
Have difficulty finding information about arts and cultural activities
If more events and better access would go more often
Lower than averageattendance & participation levels.
Lower TV and Radio viewing and listening
Very low use of Internet and on-line activity.
More likely to be, but not exclusively:
Aged 75+
Disabled or long term illness
Retired
Low income
No qualifications
DE socio-economic groups
See graph on next chart for details
14
8797
8557
100100
887476
107118
200
211
83
63108
133150
50
8045
191
4169
105166
Any attendance or participation
Watch on TV, video or DVD
Listen on radioOn-line activities
16-17
18-24
25-3445-44
45-54
55-6465-74
75+
Any disability
Member of minority ethnic community
Full timePart time
RetiredUnemployed
Full time education
School, HNC or HND
Degree or higher degree
No qualifications
ABC1
C2
DE
Population index = 100Activity
Age
Disability
Ethnicity
Working status
Highest Qualification
Socio-economic group
Segment 3 – ‘Restricted’ - 17% of populationSegment 3 – ‘Restricted’ - 17% of population
15
On-line activities in last 12 months
11%
8%
17%
11%
3%
4%
3%
2%
31%
14%
23%
18%
14%
13%
9%
5%
3%
8%
Purchased tickets for an artsperformance
Purchased and/or downloadedmusic
Used a social networking site
Uploaded video or audio
Purchased/downloaded film/TVprogramme
Bought a work of fiction or poetryon the Internet
Contributed to an on-line forum/discussion
Contributed/produced an on-lineblog
Subscribed to an RSS feed Restricted segment
Scottish Adult Population
Segment 3 – ‘Restricted’ - 17% of populationSegment 3 – ‘Restricted’ - 17% of population
Factors influencing choices events attended
55%
44%
17%
14%
63%
57%
31%
26%
15%
5%
Recommendationfrom
friends/family
Reviews inpapers,
magazines, ontelevision, etc.
Information on theInternet
Your experienceof the work ofspecific artists
Chance to seework of artistsyou have neverseen or heardabout much
Will travel an average of 20 miles to attend arts event, less than the population average (32 miles).
16
Segment 3 – ‘Restricted’ - 17% of populationSegment 3 – ‘Restricted’ - 17% of population
ACORN groups
5%
5%
5%
4%
7%
5%
3%
11%
4%
3%
0%
3%
8%
19%
10%
10%
0%
2%
3%
3%
1%
3%
5%
1%
9%
4%
1%
0%
1%
6%
26%
16%
19%
0%
A Wealthy Executives
B Affluent Greys
C Flourishing Families
D Prosperous Professionals
E Educated Urbanites
F Aspiring Singles
G Starting Out
H Secure Families
I Settled Suburbia
J Prudent Pensioners
K Asian Communities
L Post Industrial Families
M Blue-collar Roots
N Struggling Families
O Burdened Singles
P High-Rise Hardship
Q Inner City Adversity
Scottish adult population
Restricted
Compared to adult population, more likely to be in ‘Struggling
Families’, ‘Burdened Singles’ and ‘High Rise Hardship’ groups.
Compared to adult population, more likely to be in ‘Struggling
Families’, ‘Burdened Singles’ and ‘High Rise Hardship’ groups.
*Respondent postcodes have been profiled using ACORN (A Classification of Residential Neighbourhoods). For more details see www.caci.co.uk/acorn
17
Segment 4 – ‘Opting Out - 14% of populationSegment 4 – ‘Opting Out - 14% of population
Spending my time attending or participating in the arts and cultural activities is of little interest
Feel out of place in an art gallery, museum or theatre
The needs of family members take priority
Would not attend more performances if closer to home, easier access
Lowest attendance & participation levels
Low TV, Internet and Radio viewing and listening.
Very low use of Internet and on-line activity.
More likely to be, but not exclusively :
Aged 65+
Retired
No qualifications
DE socio-economic groups
See graph on next chart for details
18
8692
8851
1006465
84106107
164163
144
50
8385
15490
50
9632
173
5069
124145
Any attendance or participation
Watch on TV, video or DVD
Listen on radioOn-line activities
16-17
18-24
25-3445-44
45-54
55-6465-74
75+
Any disability
Member of minority ethnic community
Full timePart time
RetiredUnemployed
Full time education
School, HNC or HND
Degree or higher degree
No qualifications
ABC1
C2
DE
Population index = 100Activity
Age
Disability
Ethnicity
Working status
Highest Qualification
Socio-economic group
Segment 4 – ‘Opting Out - 14% of populationSegment 4 – ‘Opting Out - 14% of population
19
On-line activities in last 12 months
10%
6%
12%
8%
2%
2%
2%
31%
14%
23%
18%
14%
13%
9%
5%
3%
6%
Purchased tickets for an artsperformance
Purchased and/or downloadedmusic
Used a social networking site
Uploaded video or audio
Purchased/downloaded film/TVprogramme
Bought a work of fiction or poetryon the Internet
Contributed to an on-line forum/discussion
Contributed/produced an on-lineblog
Subscribed to an RSS feed Opting Out segment
Scottish Adult Population
Segment 4 – ‘Opting Out’ - 14% of populationSegment 4 – ‘Opting Out’ - 14% of population
Factors influencing choices events attended
49%
35%
17%
6%
63%
57%
31%
26%
15%
3%
Recommendationfrom
friends/family
Reviews inpapers,
magazines, ontelevision, etc.
Information on theInternet
Your experienceof the work ofspecific artists
Chance to seework of artistsyou have neverseen or heardabout much
Will travel an average of 22 miles to attend arts event, less than the population average (32 miles).
20
Segment 4 – ‘Opting Out’ - 14% of populationSegment 4 – ‘Opting Out’ - 14% of population
ACORN groups
5%
5%
5%
4%
7%
5%
3%
11%
4%
3%
0%
3%
8%
19%
10%
10%
0%
3%
5%
4%
0%
3%
3%
1%
7%
4%
4%
0%
4%
10%
25%
16%
10%
0%
A Wealthy Executives
B Affluent Greys
C Flourishing Families
D Prosperous Professionals
E Educated Urbanites
F Aspiring Singles
G Starting Out
H Secure Families
I Settled Suburbia
J Prudent Pensioners
K Asian Communities
L Post Industrial Families
M Blue-collar Roots
N Struggling Families
O Burdened Singles
P High-Rise Hardship
Q Inner City Adversity
Scottish adult population
Opting Out
Compared to adult population, more likely to be in ‘Post
Industrial Families’, ‘Blue Collar Roots’, ‘Struggling Families’ or
‘Burdened Singles’ groups.
Compared to adult population, more likely to be in ‘Post
Industrial Families’, ‘Blue Collar Roots’, ‘Struggling Families’ or
‘Burdened Singles’ groups.
*Respondent postcodes have been profiled using ACORN (A Classification of Residential Neighbourhoods). For more details see www.caci.co.uk/acorn
21
Segment 5 – ‘Free’ - 17% of populationSegment 5 – ‘Free’ - 17% of population
Value for money is not a high priority when deciding what to do in leisure time
Needs of family are not a high priority when planning leisure time
Fairly high attendance & participation levels esp. music events
Slightly higher TV and Radio viewing and listening inc. opera and jazz music.
High use of Internet and on-line activity including social networking sites, purchasing and downloading music and film.
More likely to be, but not exclusively :
Aged 16-24
Full time employed or in full time education
Have a degree or higher degree
ABC1 socio-economic groups
See graph on next chart for details
22
103101
107118
167155
9479
10686
82113
72
183
11885
9260
167
107127
59
118117
10066
Any attendance or participation
Watch on TV, video or DVD
Listen on radioOn-line activities
16-17
18-24
25-3445-44
45-54
55-6465-74
75+
Any disability
Member of minority ethnic community
Full timePart time
RetiredUnemployed
Full time education
School, HNC or HND
Degree or higher degree
No qualifications
ABC1
C2
DE
Population index = 100Activity
Age
Disability
Ethnicity
Working status
Highest Qualification
Socio-economic group
Segment 5 – ‘Free’ - 17% of populationSegment 5 – ‘Free’ - 17% of population
23
On-line activities in last 12 months
37%
21%
32%
25%
16%
13%
7%
5%
31%
14%
23%
18%
14%
13%
9%
5%
3%
21%
Purchased tickets for an artsperformance
Purchased and/or downloadedmusic
Used a social networking site
Uploaded video or audio
Purchased/downloaded film/TVprogramme
Bought a work of fiction or poetryon the Internet
Contributed to an on-line forum/discussion
Contributed/produced an on-lineblog
Subscribed to an RSS feed Free and Easy segment
Scottish Adult Population
Segment 5 – ‘Free’ - 17% of populationSegment 5 – ‘Free’ - 17% of population
Factors influencing choices events attended
63%
61%
36%
37%
63%
57%
31%
26%
15%
24%
Recommendationfrom
friends/family
Reviews inpapers,
magazines, ontelevision, etc.
Information on theInternet
Your experienceof the work ofspecific artists
Chance to seework of artistsyou have neverseen or heardabout much
Will travel an average of 38 miles to attend arts event, longer than the population average (32 miles).
24
Segment 5 – ‘Free’ - 17% of populationSegment 5 – ‘Free’ - 17% of population
ACORN groups
5%
5%
5%
4%
7%
5%
3%
11%
4%
3%
0%
3%
8%
19%
10%
10%
0%
6%
10%
7%
5%
12%
5%
3%
10%
4%
3%
0%
2%
6%
13%
8%
6%
0%
A Wealthy Executives
B Affluent Greys
C Flourishing Families
D Prosperous Professionals
E Educated Urbanites
F Aspiring Singles
G Starting Out
H Secure Families
I Settled Suburbia
J Prudent Pensioners
K Asian Communities
L Post Industrial Families
M Blue-collar Roots
N Struggling Families
O Burdened Singles
P High-Rise Hardship
Q Inner City Adversity
Scottish adult population
Free & Easy
Compared to adult population, more likely to be in ‘Affluent
Greys’ and ‘Educated Urbanites’ groups.
Compared to adult population, more likely to be in ‘Affluent
Greys’ and ‘Educated Urbanites’ groups.
*Respondent postcodes have been profiled using ACORN (A Classification of Residential Neighbourhoods). For more details see www.caci.co.uk/acorn
25
Segment 6 – ‘Experienced Seekers’ – 14% of populationSegment 6 – ‘Experienced Seekers’ – 14% of population
Attending and participating in arts and cultural activities helps to enrich the quality of my life
I like to learn and experience new things in my leisure time
High attendance & participation levels esp. theatre, museums, art galleries.
Average TV, Internet and Radio viewing and listening. Listen to plays on radio & orchestral music recordings.
High use of Internet esp. to purchase tickets for arts performances.
More likely to be, but not exclusively :
Aged 45-64
No disabilities
Employed or retired
High income
High levels of education
AB socio-economic groups
See graph on next chart for details
26
109101101
124
13345
100100
129136
10038
33
67
1239292
60100
91177
36
168117
7641
Any attendance or participation
Watch on TV, video or DVD
Listen on radioOn-line activities
16-17
18-24
25-3445-44
45-54
55-6465-74
75+
Any disability
Member of minority ethnic community
Full timePart time
RetiredUnemployed
Full time education
School, HNC or HND
Degree or higher degree
No qualifications
ABC1
C2
DE
Population index = 100Activity
Age
Disability
Ethnicity
Working status
Highest Qualification
Socio-economic group
Segment 6 – ‘Experienced Seekers’ – 14% of populationSegment 6 – ‘Experienced Seekers’ – 14% of population
27
Factors influencing choices events attendedOn-line activities in last 12 months
49%
15%
22%
20%
24%
12%
6%
6%
31%
14%
23%
18%
14%
13%
9%
5%
3%
15%
Purchased tickets for an artsperformance
Purchased and/or downloadedmusic
Used a social networking site
Uploaded video or audio
Purchased/downloaded film/TVprogramme
Bought a work of fiction or poetryon the Internet
Contributed to an on-line forum/discussion
Contributed/produced an on-lineblog
Subscribed to an RSS feed Experienced Seekers segment
Scottish Adult Population
Segment 6 – ‘Experienced Seekers’ - 14% of populationSegment 6 – ‘Experienced Seekers’ - 14% of population
63%
61%
36%
37%
63%
57%
31%
26%
15%
24%
Recommendationfrom
friends/family
Reviews inpapers,
magazines, ontelevision, etc.
Information on theInternet
Your experienceof the work ofspecific artists
Chance to seework of artistsyou have neverseen or heardabout much
Will travel an average of 38 miles to attend arts event, longer than the population average (32 miles).
28
Segment 6 – ‘Experienced Seekers’ - 14% of populationSegment 6 – ‘Experienced Seekers’ - 14% of population
ACORN groups
5%
5%
5%
4%
7%
5%
3%
11%
4%
3%
0%
3%
8%
19%
10%
10%
0%
7%
5%
7%
13%
11%
7%
4%
15%
4%
2%
0%
3%
5%
9%
4%
3%
1%
A Wealthy Executives
B Affluent Greys
C Flourishing Families
D Prosperous Professionals
E Educated Urbanites
F Aspiring Singles
G Starting Out
H Secure Families
I Settled Suburbia
J Prudent Pensioners
K Asian Communities
L Post Industrial Families
M Blue-collar Roots
N Struggling Families
O Burdened Singles
P High-Rise Hardship
Q Inner City Adversity
Scottish adult population
Experienced Seekers
Compared to adult population, more likely to be in ‘Prosperous
Professionals’, ‘Educated Urbanites’ or ‘Secure Families’
groups.
Compared to adult population, more likely to be in ‘Prosperous
Professionals’, ‘Educated Urbanites’ or ‘Secure Families’
groups.
*Respondent postcodes have been profiled using ACORN (A Classification of Residential Neighbourhoods). For more details see www.caci.co.uk/acorn
29
Summary – Varying engagementSummary – Varying engagement
Disengaged Engaged
Levels of engagement in arts, in terms of overall attendance and participation levels varies between segments
Opting Out49% attendance58% participation
Restricted 58% attendance54% participation
Free & Easy84% attendance74% participation
Time Poor86% attendance73% participation
PrudentParticipants
83% attendance78% participation
Experienced Seekers
95% attendance84% participation
30
Summary – Interest v AbilitySummary – Interest v Ability
Ability
Interest
Opting Out49% attendance58% participation
PrudentParticipants
83% attendance78% participation
Restricted58% attendance54% participation
Free & Easy84% attendance74% participation
Experienced Seekers
95% attendance84% participation
Plotting the position of segments according to ability to attend and interest in the
arts can facilitate the targeting of resources.
Plotting the position of segments according to ability to attend and interest in the
arts can facilitate the targeting of resources.
Time Poor86% attendance73% participation
31
Appendix – Segmentation method (1 of 2)Appendix – Segmentation method (1 of 2)
The Scottish adult population has been segmented on the basis of their responses to a series of 11 attitude statements (see slide 3). This segmentation was undertaken using a combination of factor and cluster analysis approaches as described below.
1) Factor AnalysisFactor analysis is a mathematical technique that groups together statements (in this study the series of 11attitude statements) into factors on the basis that statements within a factor are highly correlated i.e. answered in a similar way .
The factors enable us to understand the structure amongst a larger group of statements and to simplify further analysis and interpretation. The factors are such that at a respondent level we can calculate a score for each factor and these scores can, for example, be used to group respondents with similar attitudes using cluster analysis (see next slide) .
Mathematically we start by using Principal Component Analysis to simplify the data into a series of independent components which explain as much of the variation of the data as possible by linear combinations of the statements put in. We determine the number of “real” factors within the data by looking at the magnitudes of a mathematical parameter known as Eigenvalues which are associated with these successive principal components.
At this stage, individual statements may be associated with more than one principal component (factor). In order to simplify the interpretation we apply a further mathematical technique known as factor rotation (Varimax usually) to these principal components. This rotation maintains the level of variance explained and the independence of the factors to create factors that are reasonably well correlated with the individual statements and don’t have one big ‘positivity’ factor that masks the more interesting aspects of the data. The factors then are, loosely, groupings of correlated statements.
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Appendix – Segmentation method (2 of 2)Appendix – Segmentation method (2 of 2) 2) Cluster analysis
In contrast to factor analysis which groups together attitudinal statements, cluster analysis is a technique that groups together survey respondents who have similar profiles of attitudinal statements.
To carry out the cluster analysis we run it in three stages using K-means cluster analysis to produce well defined clusters that are not unhelpfully small or influenced by outliers.
The first run identifies a number of potential “seed” points for the initial centres of the clusters by doing a cluster analysis with a large number of clusters and using the larger of the resultant clusters as seeds for the second stage.
The second stage excludes outliers and clusters all remaining respondents into groups.
The third stage assigns the outliers to the groups achieved in the second run. In this way the outliers will be in the cluster to which they have most in common but they will not have been allowed to influence or bias the creation of the cluster.
We repeat this process for a number of different cluster “solutions” and, although we monitor statistics such as the r-squared value to ensure that the clusters explain a good proportion of the variation within the data, the final choice of number of clusters is determined by the researchers looking at the interpretation of the clusters created against the factors used in the analysis and often against other data from the survey (in the case of this study the cluster solutions were looked at against data regarding arts participation and demographic details).