__________ permit(s)inferences about cause-and-effect relationships in experimental designs.
A) Using treatment conditions that already exist in the real world
B) Manipulating or controlling changes in the dependent variable
C) Random assignment of participants to treatment conditions
D) Correlations between two or more variables

Question

Quizplus · Accepted Answer

Random assignment of participants to treatment conditions allows for the control of other variables that could potentially influence the outcome and isolates the specific effects of the independent variable. This allows for cause-and-effect relationships to be inferred. Options A and D do not provide enough control for causal inferences, and option B only manipulates one variable without controlling for other potential influences.

__________ Permit(s)inferences About Cause-And-Effect Relationships in Experimental Designs