Question

sometimes, researchers will administer a(n) ______ to participants in the control group to control for the effects that participant expectation might have on the experiment.

placebo
statistical analysis
independent variable
dependent variable

Explanation:

A placebo is an inert substance or treatment given to a control group to account for the placebo effect, which is the impact of participant expectations on experimental outcomes. The other options do not address controlling for participant expectations: statistical analysis is a post-experiment data tool, independent variables are the manipulated factors, and dependent variables are the measured outcomes.

Answer:

O placebo