COLLECTION OF DATA

COLLECTION OF DATA

CH-02

DATA

Quantitative information which is capable of some meaningful conclusions

TWO SOURCES OF DATA COLLECTION

• Primary source

• Secondary source

Multiple Choice

Which data is more costly?

• Primary data

• Secondary data

• Low data

• High data

COLLECTION OF DATA INCLUDES:

• (A) Sources of data (Already discussed)

• (B) Modes of data collection

Methods to collect primary data:

* Personal interviews

* Information through Questionnaires and schedules

* Telephonic interviews

Personal Interviews

• Direct personal investigation

• Indirect oral investigation

• Information through Local Sources or correspondents

Information through Questionnaires and Schedules

• Mailing(Questionnaire) Survey

• Enumerator's method

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Poll

You are keen on finding statistical information on available Health Care facilities in your locality comprising 200 families. How would you approach the issue and which method of investigation would you prefer to adopt?

• Direct Personal investigation

• Indirect oral investigation

• Information through local sources

• None of these

Information through local correspondents or local souces

• Investigator appoints local persons at different places

• Information is to be used like: journals, magazines , radio, TV etc

Information through Questionnaires and schedules

• Mailing surveys

• Enumerator's method

Qualities of a good questionnaire

* Limited number of questions

* Simplicity

* Proper order of questions

* No undesirable questions

* Non- controversial

* Calculations

* Pre-testing pilot survey

* Instructions

* Request for return

Types of questions in questionnaire

• Simple alternative questions

• MCQs

• Specific information question

• Open questions

Sources of collecting secondary data: Published sources and unpublished sources

• Government publications

• Semi-government publications

• Reports of commissions and committees

• Publications of trade association

• Publication of research institution

Unpublished sources

• data collected by government organisations

• for self use or office record

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Two important sources of secondary data:

• Census of India

• NSSO