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 advantag-pslfe)hl u, a+ h1rg,cu /9nj2ip af4r +k+ svdkh85ee of using a matched pairs design over an independent samples d4 r8d n fce9/ja2p+ikhv5u+skesign?
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 characteristvek06za, e f s z epc7gam)ihf(;n89x2ic before assigning them to different treatment groups. This helps contz ackm6 s7e(2i ,fngahpx z;e98f)ev0rol individual differences and reduces the risk of confounding variables affecting 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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