Primary and Secondary Data Sources

In this video, we break down one of the foundational concepts within Area I: the difference between primary and secondary data sources. Knowing when to use each type and understanding their strengths and limitations is critical for both the exam and real-world health education practice.

NCHEC expects you to recognize which data source is appropriate for a given scenario and understand how each contributes to a comprehensive needs assessment. This is a high-frequency topic on the CHES and MCHES exams, so getting it right here pays off on exam day.

Read the study guide article for this lesson →

What's Covered

  • Definitions and examples of primary data sources
  • Definitions and examples of secondary data sources
  • Key differences and when each is most appropriate
  • Strengths and limitations of both data types
  • How NCHEC frames primary vs secondary data in exam scenarios

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