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]
Which of the following l7+v .(z9)pjaobuh -j qjo (adir9p1 lch p7;j9hhng0js a way to enhance internal validity in experimental reshpj9g9ph h 1c 0;7rnljearch?
A. Increasing the sample size
B. Using random assignment
C. Using a longitudinal design
D. Conducting a survey study
参考答案: B
本题详细解析:
:
By using random assignment, it becomes more like eyj2rr5tpc 5(ly that participants will be evenly distributed between the experimental and control groups, re(y5rj etr52 pcducing the likelihood of confounding variables influencing the results. The other options are not suitable because (A) relates to statistical power, (C) refers to a research design, and (D) refers to a different research method.
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