Reliability of Secondary data

Reliability of Secondary data

Before using the secondary data, the following things should be checked to test its reliability:

• Who collected the data?, What were the objectives of collecting data?
• Whether the investigator was experienced, capable, unbiased or not?
• Whether the appropriate techniques of collecting data were applied or not?
• What degree of accuracy was maintained in the data?
• Was the accuracy of the data checked?
• In which time period and in what circumstances were the data collected?