Page 90 - DCOM203_DMGT204_QUANTITATIVE_TECHNIQUES_I

Unit 5: Collection of Data

Notes
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Caution Before using any secondary data, the user must satisfy himself regarding the
following points:

1. Are data suitable for the current investigation?
2. Are data adequate for the current investigation?
3. Are data reliable?

Task Amongst various methods of rounding, which one is best and why?

Notes Editing of Data
The next logical step, after the collection of data, is the process of refining it for proper
utilisation. This process is known as editing. Editing of data includes the identification
and dropping of the unwanted information. In addition to this, steps are taken to complete
the left out information. Another aim of editing is to find out and rectify possible errors or
irregularities during the collection of data. Thus, the process of editing implies the scrutiny
of data in various ways. The process of editing of primary data can be divided into the
following six stages:
1. Deciphering

2. Scrutiny for completeness
3. Scrutiny for uniformity
4. Scrutiny for consistency
5. Scrutiny for accuracy

6. Coding of data

Self Assessement

Multiple Choice Questions:
16. The data, collected and used by some other person or agency for an investigation in the
past, when used for the investigation of a current problem, is known as .....................................
data.
(a) Primary (b) Secondary
(c) Simple (d) Complex

17. ..................................... data may be available in published or unpublished form
(a) Secondary (b) Primary
(c) Simple (d) Complex

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