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 investigation akpwhd6fb* 4:nqwe (3 byi 6/kdnalr,gkhshoi1ls40q( z5c 9z e;( d) jhtnyzes the effects of a new fitness program on weight l i)4hhjd( z5rsskc ng0,oleq(tz1h9 ;oss outcomes in a specific age group. The researchers generalised the findings to all age groups.
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 focuses solely on a specific age group, ke a*pl,yxq3t-i 5,xq the findings may not accurately represent other age groups' diverse characteristics and experiences. This-3,iey5kqqa ,pxt *lx 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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