In a matched-subjects design with 15 participants per group, what is the total number of participants?

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Multiple Choice

In a matched-subjects design with 15 participants per group, what is the total number of participants?

Explanation:
In a matched-subjects design, you have equal numbers of participants in each condition, and the total sample is the sum across all conditions. With 15 participants in each group and two groups, the total is 15 + 15 = 30. The matching is about making the groups comparable to reduce variability, but the overall count comes from adding all participants across the conditions. If there were more groups, you’d multiply 15 by the number of groups; with two groups, that’s 30.

In a matched-subjects design, you have equal numbers of participants in each condition, and the total sample is the sum across all conditions. With 15 participants in each group and two groups, the total is 15 + 15 = 30. The matching is about making the groups comparable to reduce variability, but the overall count comes from adding all participants across the conditions. If there were more groups, you’d multiply 15 by the number of groups; with two groups, that’s 30.

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