What is a common caution when using secondary data related to data collection methods?

• A. May not know how the data was collected and who collected it.
• B. Always knows the data collection methods.
• C. Is always collected by the researcher.
• D. Has no metadata or provenance.

Answer: (A)

When using secondary data, you may not know how the data were collected or who collected them. This uncertainty matters because it affects how reliable and comparable the data are for your study. Details like the sampling method, the time period, measurement instruments, and any biases built into the data collection process determine whether the data fit your research question and how much confidence you can place in them. Always look for metadata or provenance from the source to understand origins, scope, and any processing that was done. This helps you assess suitability and limitations. The other possibilities aren’t as reliable because secondary data isn’t guaranteed to include full information about collection methods, isn’t necessarily collected by the researcher, and may or may not have metadata or provenance available.