An educational psychologist seeks to determine how the duration of studying is related to standardized test scores.She realizes that IQ is a possible third variable that could cause both studying and test score.As such,she studies only students who have approximately the same IQ.What technique is the psychologist using to attempt to control for this third variable?

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Quizplus · Accepted Answer

The psychologist is using the technique of matched samples, where she is studying only students who have approximately the same IQ to attempt to control for the third variable of IQ. This helps to ensure that any differences in test scores can be more confidently attributed to differences in studying duration rather than IQ. Matched pairs typically involve comparing two groups that have been matched in terms of relevant variables, such as age or gender, and would not be appropriate in this scenario. Matched supervisors and double-blind observation are also not relevant to this particular study.

An Educational Psychologist Seeks to Determine How the Duration of Studying