16. What is the purpose of a constant comparison analysis?

A. It uses multiple sources to investigate an entity or a phenomenon through triangulation.

B. It generates, interprets, and represents people's stories to identify patterns and themes.

C. It compares one piece of data to others to determine the relationships between them.

D. It analyzes the overall direct and indirect costs and benefits of an intervention and can be used to compare interventions or programs.

17. Which of the following statements about survey research is not true?

A. It can be applied to acquire factual information or to ascertain beliefs or values.

B. It can help health policy researchers to explore factors associated with a problem of interest.

C. It strives to measure the distribution of specific characteristics or results among a sample.

D. It is the use of a systematic method based on small samples and qualitative analysis.

18. A dependent variable represents a treatment, a characteristic, an exposure, or another factor that is being examined to determine its effect on an independent variable.

True or False?

19. What is a longitudinal survey?

A. It is a series of repeated surveys of a single or similar sample over a specified period.

B. None of these

C. It is scientific investigation that aims to improve health.

D. It is an examination of population characteristics at a specific point in time.