Page 83 - DCOM203_DMGT204_QUANTITATIVE_TECHNIQUES_I

Quantitative Techniques – I

Notes necessary, must be done very carefully. The cost of collection of primary data, however, are
much higher.

Did u know? The system of data collection was described in Tuzuk-i-Bab4ri and
Ain-i- Akabari. During Akbar’s period, his revenue minister, Raja Todarmal, made a well
organised survey of land for the collection of land revenue.

Self Assessment

Fill in the blanks:

1. The collection and analysis of data constitute the main stages of ......................... of any
statistical investigation.
2. Between collection and analysis of data, there is always an intermediate stage, known as
the ....................................
3. The process of .................................. refines the collected data by checking inconsistencies,
inaccuracies, illegible writings and other types of deficiencies or errors present in the
collected information.
4. The procedure for collection of data depends upon various ............................... such as
objective, scope, nature of investigation, etc.
5. Data may be collected either from a ......................... or from a ......................... source.
6. Primary data collected with a specified objective of investigation, are likely to be
............................. reliable as compared to secondary data.
7. The cost of collection of primary data, however, are ....................................

5.2 Method of Collecting Data

For collection of primary data, the investigator may chose any one or a combination of the
following methods:
1. Direct Personal observation
2. Indirect Oral Interview
3. Information through Local Agencies or Correspondents

4. Information through Questionnaires filled by Respondents
5. Information through Schedules filled by Investigators
1. Direct Personal Observation: Under this method, the investigator collects data by having
direct contact with the units of investigation. The accuracy of collected data depends, to a
large extent, upon the training and attitude of the investigator and the supporting attitude
of the respondents.
This method is suitable for an intensive type of investigation where (i) the scope of
investigation is narrow, (ii) the process of investigation is so complex that it requires
personal attention of the investigator, (iii) the investigation is confidential and (iv) more
emphasis is to be given to the accuracy of the data.

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