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Revision Notes

Collection of Data — Revision Notes

ICSE · Class 11 · Economics

Collection of Data revision notes for ICSE Class 11 Economics: 4 topics in quick points. Part of the ICSE Class 11 Economics syllabus.

65 questions38 flashcards5 concepts

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Key Topics to Revise

1

1. Primary and Secondary Data

  • Primary data are original, first-hand data collected for the first time for a specified purpose.
  • Secondary data are data collected by someone else and used by another person.
  • Published data are necessarily secondary data.
2

2. Sources of Data

  • There are two main sources of data: internal sources and external sources.
  • Internal data come from internal reports and records of an organisation.
  • Internal data are under the control of the business.
3

3. Methods of Collecting Primary Data

  • Primary data can be collected by five methods: direct personal investigation, indirect oral investigation, information through correspondents, mailed questionnaire, and questionnaire through personal
  • Telephone interviews are cheaper and quicker than personal interviews but depend on telephone availability.
  • Direct personal investigation means the investigator goes to the field and collects data personally.
4

4. Essentials of a Good Questionnaire

  • A good questionnaire is a key instrument for collecting primary data from many persons.
  • It should have a covering letter that explains the purpose of the survey.
  • Questions should be simple, short, and clearly worded.

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Full Notes

Key Concepts

Primary data are originalSecondary data are data collected byInternal data are obtained fromExternal data are collected from outsideCensus method means studying every unit

Frequently Asked Questions

What are the important topics in Collection of Data for ICSE Class 11 Economics?
Key topics in Collection of Data include Primary and Secondary Data, Sources of Data, Methods of Collecting Primary Data, Essentials of a Good Questionnaire. Study these first, then practise questions on each for Class 11 exams.
How should I revise Collection of Data for Class 11 exams?
Learn the core ideas first, then work through the 65 practice questions on Collection of Data. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All ICSE Class 11 Economics Revision Notes

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