Unformatted text preview: 90,11,237
3.2.3 Spacio Temporal Data:
If the data collected is connected to the time as well as place
then it is known as spacio temporal data.
3.3 Categories of data:
Any statistical data can be classified under two categories
depending upon the sources utilized.
These categories are,
1. Primary data
2. Secondary data
3.3.1 Primary data:
Primary data is the one, which is collected by the
investigator himself for the purpose of a specific inquiry or study.
Such data is original in character and is generated by survey
conducted by individuals or research institution or any
30 Example 4:
If a researcher is interested to know the impact of noonmeal scheme for the school children, he has to undertake a survey
and collect data on the opinion of parents and children by asking
relevant questions. Such a data collected for the purpose is called
The primary data can be collected by the following five
1. Direct personal interviews.
2. Indirect Oral interviews.
3. Information from correspondents.
4. Mailed questionnaire method.
5. Schedules sent through enumerators.
1. Direct personal interviews:
The persons from whom informations are collected are
known as informants. The investigator personally meets them and
asks questions to gather the necessary informations. It is the
suitable method for intensive rather than extensive field surveys. It
suits best for intensive study of the limited field.
1. People willingly supply informations because they are
approached personally. Hence, more response noticed in
this method than in any other method.
2. The collected informations are likely to be uniform and
accurate. The investigator is there to clear the doubts of the
3. Supplementary informations on informant’ s personal
aspects can be noted. Informations on char...
View Full Document