On the Design of Sampling Investigations

Professor Snedecor's discussion of the design of sampling investigations was prepared early last fall as a speech which was delivered at meetings of the Chicago and Central Indiana Chapters of the American Statistical Association. No basic revisions have been made since the 1948 presidential elections.     

大开眼界看朝阳

<正>来中国留学已经一段时间了,去过的地方也不少,可是给我留下最深印象的却是一个很多人都不知道的城市——辽宁的朝阳。在辽宁生活的时间里,我一直觉得辽宁是一个很普通没有什么吸引力的地方。但参加了沈阳师范大学特色班的"留学生辽宁文化考察活动"以后,我忽然发现,原来在这     

Actual versus perceived risk of cervical cancer among college women smokers

Cervical cancer is a well-established smoking-related illness, but many at-risk women are unaware of this link. OBJECTIVE: The authors designed this study to (1) investigate the relationship of smoking behavior with the history of abnormal Pap test results, sexual history, and perceived risk of cervical cancer and (2) determine whether self-classified smoking status (and hence perceived risk) corresponds with actual smoking behavior in a college student population. PARTICIPANTS AND METHOD SUMMARY: College women students (N = 135) completed a survey assessing smoking history, health history, sexual risk behavior, and risk awareness. RESULTS: Relative to those who had not smoked in the past month, current smokers (n = 36, or 27% of the total sample) perceived themselves to be at higher risk for developing cervical cancer, but did not demonstrate increased awareness of specific cervical cancer risk factors, including smoking. Twenty-eight percent (10 of 36) of past-month smokers did not define themselves as current smokers. CONCLUSION: The authors conclude that anti-smoking and health-related messages targeting smokers may misfire for individuals who do not define themselves as smokers but are nonetheless at risk for smoking-related consequences and escalating use.