本题目来源于试卷: IB Psychology HL Approaches to Research on Behavior，类别为 IB心理学
[单选题]
What is one advantage of using a matcmcj ll-c ,rx:b/; f4dohed pairs design over an i4njhf,dcr-t . ndependent samples de.rd-4t,j chnf sign?
A. Increased statistical power due to larger sample sizes
B. Elimination of individual differences as a potential confounding variable
C. Reduced risk of experimenter bias
D. Ability to study long-term effects
参考答案: B
本题详细解析:
:
Matched pairs design involves pairing participants based on some characterisdqsypg96k.63 3 za ojytic before assigning them to different treatment groups. This helps control individual differences and reduces the risk of confounding variables affectingz36ysjq3k 9pyagd6.o the results (B).
Matched pairs design doesn't necessarily result in larger sample sizes (A). Experimenter bias is unrelated to the choice of research design (C), and the research designs don't necessarily determine the study's duration (D).
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