What are primary data and secondary data? Which of the two is more reliable and why?
Primary Data: A Data collected by the investigator himself with a definite plan in mind is called primary data.
Secondary Data: A data collected by someone, other than investigator is called secondary data.
Primary data are highly reliable than secondary data because they are collected by investigator himself with a definite plan in mind so they are more relevant. While secondary data are not being fully relevant to the investigation.