When we use different subjects in each condition,but they are related on some variable or variables,we are using a _____ design.
A)matched-subjects
B)between-subjects
C)within-subjects
D)across-subjects

Question

Quizplus · Accepted Answer

A matched-subjects design is used when the experimental conditions require different groups of participants, but the groups must be matched on some important variable that may affect the outcome of the study. This is done to ensure that the differences observed between the conditions are not due to differences in the participants themselves, but rather to the manipulation of the independent variable. This design controls for individual differences, thereby improving the internal validity of the study. Between-subjects designs use different groups of participants in each condition without controlling for individual differences, whereas within-subjects designs use the same group of participants in each condition to control for individual differences. Across-subjects is not a recognized term in experimental design.

When We Use Different Subjects in Each Condition,but They Are