Jackson is collecting data on the impact of pollution in his neighborhood for his school report. Match the different research instruments that he may use for data collection to their respective data sources.

1 questionnaires

2 case study

3 previous research

4 interviews

5 web articles

6 observations

7 government reports

primary data source or secondary data source

Primary Data Source:

1 questionnaires

2 case study

4 interviews

6 observations

Secondary Data Source:

3 previous research

5 web articles

7 government reports

Explanation:

Primary Data Source:

A primary data source is the original first hand account of the authors/researchers of a study. Surveys, interviews, questionnaires are all primary data collection tools as they directly access the subjects/volunteers in a study. The data directly comes from their first hand accounts. Other primary data sources are:case reportsclinical reportsjournal acountsrecords

Secondary Data Sources:

A secondary data source describes, summarizes, reports or analyses primary data. Secondary data is used to obtain a general overview of the topic of interest or to review/analyse the conclusions drawn in primary data. Secondary data sources include:textbooksmagazine articlesbook articles