What does 'source variety' mean in research?

• A. Using only primary sources
• B. Relying on a single news outlet
• C. Using sources with identical perspectives
• D. Using multiple types of sources (primary, secondary, different outlets) to obtain a balanced view and corroborate facts

Answer: (D)

Source variety means gathering information from different kinds of sources so you see multiple perspectives and can verify what you find. In research, that means mixing primary sources—original documents or data you can directly observe—with secondary sources that interpret or analyze those materials, and pulling from different outlets, authors, and formats. This mix helps you build a balanced view and check facts across sources rather than taking a single source at face value.

Why this matters is that each type of source has its strengths and limits. Primary sources provide direct evidence, but they can be open to interpretation and may not cover the full picture. Secondary sources add context and analysis, yet they carry the author’s point of view. When you combine diverse sources, you reduce the risk that one bias or limitation shapes your conclusions and you can corroborate important details through multiple independent voices.

So, the best approach is to use a variety of sources—primary and secondary, from different outlets or perspectives—to cross-check information and form a well-supported understanding.