The term blocking refers to
A) using a Latin squares design to control order effects in a within-subjects experiment.
B) including an extraneous variable as an independent variable in a factorial design in order to reduce error variance.
C) including both manipulated and correlational independent variables in a factorial design.
D) including both between-subjects and within-subjects independent variables in a factorial design.

Question

Quizplus · Accepted Answer

Blocking is a technique used in experimental design to reduce error variance by accounting for variability due to an extraneous variable. By including this variable as a block (or independent variable), researchers can control for its effects, making it easier to detect the impact of the primary independent variables under investigation.

The Term Blocking Refers to