Sampling Strategy and Sample Size in a Research Article

The study by Choi (et al. 2008) entitled "The efficacy of female condom skills training in HIV risk: A reduction among women: A randomized controlled trial" examined the extent to which training women in how to use the female condom at family planning clinics could potentially promote the use of this form of birth control. The study population was selected from women attending clinics at four San Francisco Bay Area cities (Concord, Mountain View, Santa Cruz, and San Francisco). 409 women elected to participate in the study. The women in the experimental group experienced a 4-session female condom skills training intervention vs. The control group which underwent a 4-session women's general health promotion intervention. Women answered questionnaires at baseline, at 3 months, and at 6 months (Choi et al. 2008: 1841). This is significant because it stresses how the sampling size...
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