One way to counteract a possible third-variable problem is to use:

Name: One way to counteract a possible third-variable problem is to use:
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Matched samples involve pairing participants with similar characteristics and assigning them to different conditions, which can control for the effects of third variables. This is particularly useful in experimental research where random assignment is not possible or ethical concerns restrict the sample selection.

One Way to Counteract a Possible Third-Variable Problem Is to Use