secondary data collection methods

This document discusses secondary data collection methods. It defines primary and secondary data, with primary data being original and problem-specific while secondary data has already been collected. Secondary data is classified into internal sources like company records and external sources like government publications. It notes the benefits of secondary data include reduced resources, accessibility, and stability, while drawbacks include limited applicability and accuracy. Authentication of secondary data involves checking methodology, accuracy, and financials. Computerized databases are also discussed as a source of secondary data.