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 is a way to enhance intp s)7p5 h(rxchers7icek (xk6z5 mx+ -ie 2mv0plnal validity in experimental research?m+clxi6072i kv z(5-sxk peem
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 bwdio ;;:,ti2 ra g//784.zfq jztqgzk nnbzr7 ecomes more likely that participants will be evenly distributed between the experimental and control groups, reducing the likelihood of confounding variables influencing the results. The other options are not suitable because (A) relzbo/4w:qtif id 8nt nag7z/j 2.7k;,zz;rrgq ates to statistical power, (C) refers to a research design, and (D) refers to a different research method.
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