Question

question 8
an ____ is a description of how the researchers will measure the variables of interest.

• operational definition
• theory
• experimental plan
• hypothesis

Explanation:

• An operational definition specifically outlines how to measure or observe a variable in a research context, matching the description in the question.
• A theory is a broad explanatory framework, not a measurement description.
• An experimental plan is the overall structure of an experiment, not focused on variable measurement alone.
• A hypothesis is a testable prediction, not a measurement guide.

Answer:

A. operational definition