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]
A research investiga x nodw /kx+u7;x4it;eu6 7v alo) p5tc;jgbj1tion analyzes the effects of a new fitness program on weight loss outcomes in a specific age group. The researchers generalised the findings to all age grou;bog75)1uj ja6 lvtpcps.
What potential challenge to generalisation is evident in this scenario?
A. Lack of statistical significance in the results
B. Lack of control over extraneous variables
C. Overestimation of the effect size
D. Limited diversity in the sample
参考答案: D
本题详细解析:
When a research study focup/ ;ga.gr8mb1n9a(g5i xeyuv5c3t xv ses solely on a specific age group, the findings may not accurately represent other age groups'1g5gm8bv3n iyx( rput . 5ge/a;xa vc9 diverse characteristics and experiences. This limitation can undermine the study's generalisation of its conclusions to a broader population.
Choice A is linked to the precision of results, B and C are not potential limitations to generalisability of results in this context.
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