.Question 10In a meta-analysis, the unit of observation is the individual1 pointresearcher.hypothesis.study.participant.

In a meta-analysis, the unit of observation refers to the basic level at which data is collected and analyzed within the studies being synthesized. In this case, it is vital to understand what is being compared or synthesized in the meta-analysis.

• Individual: This term typically refers to the single unit of measurement in a study. If the meta-analysis is focused on the outcomes measured at the individual level (e.g., test scores, health outcomes), then the unit of observation is indeed the individual.

• Researcher refers to the person conducting the study and is not a measurement unit in this context.

• Hypothesis is a statement that can be tested and is not a unit of observation.

• Study refers to the research itself rather than the unit of analysis, which may aggregate results from multiple individuals.

• Participant: This term closely relates to 'individual,' as participants are those involved in a study whose data might be observed.

Given these distinctions, the correct answer to the question about the unit of observation in a meta-analysis would be simply:

Final Answer

The unit of observation in a meta-analysis is the individual.