data collection amit rathi

8/6/2019 Data Collection Amit Rathi

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Data Collection


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Secondary Data

Secondary data is the data that have been

already collected by and readily available fromother sources. Such data are cheaper and morequickly obtainable than the primary data andalso may be available when primary data can not

be obtained at all.


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Advantages

It is economical. It saves efforts and expenses. It is time saving. It helps to make primary data collection more

specific since with the help of secondary data, we areable to make out what are the gaps and deficienciesand what additional information needs to be

collected. It helps to improve the understanding of the

problem. It provides a basis for comparison for the data that

is collected by the researcher.


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Disadvantages

Unit of secondary data collection-Suppose you

want information on disposable income, but thedata is available on gross income. Theinformation may not be same as we require.

Accuracy of secondary data is not known.

Data may be outdated. Class Boundaries may be different.


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Evaluation

Availability- It has to be seen that the kind of

data you want is available or not. If it is notavailable then you have to go for primary data.

Relevance- It should be meeting therequirements of the problem. For this we have

two criterion:- Units of measurement should be the same.

Concepts used must be same and currency of datashould not be outdated.


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Continued

Accuracy- In order to find how accurate the

data is, the following points must be considered: Specification and methodology used;

Margin of error should be examined;

The dependability of the source must be seen.

Sufficiency-Adequate data should beavailable.


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Sources

Internal Sources -

Accounting Records Sales Force Reports

Miscellaneous Reports

Internal Experts


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Continued

External Sources

Federal government Provincial/state governments

Statistics agencies

Trade associations

General business publications

Magazine and newspaper articles

Annual reports

Academic publications

Library sources

Computerized bibliographies


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Primary Data

Primary data are those data which are collected

for the first time, taking a sample, representing apopulation. It is not a published data, it isproblem specific data collected by theresearcher, first time. When primary data is

published by researcher, it becomes thesecondary data for everybody, other than theresearcher.


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Sources

questionnaires interviews focus group interviews observation case-studies

diaries critical incidents portfolios.


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Difference

Primary Data Secondary Data

Needs more funds.

Investigating Agency collectsthe data.

Requires longer time forcollection

More reliable and suitable to

the enquiry because theinvestigator himself collects it.

Needs comparatively lessfunds.

Some other investigatingagency collects it for its ownuse.

Requires less time for

collection. Less reliable and suitable as

someone else has done that jobof collection which may notserve the purpose.


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Continued

Primary Data Secondary Data

Requires elaborateorganization.

No extra precautions arerequired

No need of any organizationalset up.

Secondary data need morecare and attention.


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Thank You

data collection amit rathi

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