本题目来源于试卷: IB Psychology HL Health Psychology，类别为 IB心理学
[单选题]
What is the meaning of prevalence rate in the contkj:elx p)b g3u-d d34k4 ;q zkh4z0hdgext of health problems?
A. The ratio of females to males suffering from a specific health problem/disease.
B. The total number of cases of a specific health problem in a given population at a specific time.
C. The total number of new cases for a specific health issue.
D. The total number of cases in the last decade for a specific health issue.
参考答案: B
本题详细解析:
The prevalence rate concerning health prob f::l,lbcw6g alems is the total number of cases of a specific health problem in a given population at a specific time. It inclbg6lwf ,al:: cudes new as well as already existing cases.
Prevalence = # of people in sample with characteristictotal # of people in sampletotal # of people in sample# of people in sample with characteristic What is Prevalence? (n.d.). National Institute of Mental Health (NIMH). https://www.nimh.nih.gov/health/statistics/what-is-prevalence
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