Discussion
Which one among the following is not the primary source of data collection ?
Answer: D
Primary data are collected first hand from the source through interviews, observation and questionnaires. Historical books are existing printed material written by others and are therefore a secondary source of data. So 'historical books' is the one that is not a primary source of data collection. A secondary source is one in which the researcher uses data that someone else has already collected and published, such as books, reports, census tables, gazetteers and archival records. Interviews, observation and questionnaires all require the researcher to go to the respondents or the field, so they are primary methods, while a historical book is read and not collected from the source.
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