When using a repeated measures design,researchers must control the potential threat to internal validity referred to as
A) individual differences variables.
B) sensitivity.
C) incomplete orders.
D) practice effects.

Question

Quizplus · Accepted Answer

Practice effects can occur when participants improve their performance simply due to repeated exposure to the same task or situation. This can be a threat to internal validity in a repeated measures design as it can be difficult to distinguish between actual changes in the measured variable and changes due to practice. Therefore, researchers must control for this threat by counterbalancing the order of conditions, using a randomized block design, or including a control group.

When Using a Repeated Measures Design,researchers Must Control the Potential