Primary research involves the collection of data that does not already exist, which is information is original information. Primary research is often undertaken after the researcher has gained some insight into the issue by collecting secondary Data.(interviews etc)
Secondary research is a data collected by someone other than the user Common sources of secondary data for social science include censuses, surveys, organizational records and data collected through qualitative methodologies or qualitative research. Primary data, by contrast, are collected by the investigator conducting the research.
Secondary data analysis saves time that would otherwise be spent collecting data and, particularly in the case of quantitative data, provides larger and higher-quality databases than would be unfeasible for any individual researcher to collect on their own. In addition to that, analysts of social and economic change consider secondary data essential, since it is impossible to conduct a new survey that can adequately capture past change and/or developments.
Qualitative data The term qualitative data is used to describe certain types of information. This is almost the converse of quantitative data, in which items are more precisely described as data in terms of quantity and in which numerical values are used. However, data originally obtained as qualitative information about individual items may give rise to quantitative data if they are summarised by means of counts.
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