Categories and Sources of Data

Categories and Sources of Data

There are two categories of data namely primary data and secondary data.

Primary data are that information which is collected for the first time, from a Survey, or an observational study or through experimentation. For example

·           A survey is conducted to identify the reasons from the parents for selection of a particular school for their children in a locality.

·           Information collected from the observations made by the customers based on the service they received.

·           To test the efficacy of a drug, a randomized control trial is conducted using a particular drug and a placebo.

Let us see the detailed methods of collecting Primary data in the following Section