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PUBH 6033—Week 1 Assignment Worksheet: Study Designs and Levels of Measurement Carefully read each scenario below. Then identify the study design used (choose from cross- sectional, cohort, case-control, or experimental) and classify each study variable as quantitative, ordinal, or categorical. Student Name _______ Scenario 1: A researcher was interested in assessing the s on a college campus in California. Data was gathered by having students complete a questionnaire on orientation day at the beginning of the school year. Coding for study variables: IAR – internet addiction risk; 1 = low; 2 = medium; 3 = high SEX – 1 = male; 2 = female YEAR – 1 = freshman; 2 = sophomore; 3 = junior; 4 = senior Scenario 2: Researchers were interested in determining whether a new drug could be used to ease post- traumatic stress disorder (PTSD) symptoms among veterans. Three hundred patients were recruited from 10 Veterans Affairs hospitals; half were given the new drug while the other half were given a placebo. The results indicated statistically significant improvements in sleep quality
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  • Winter '16
  • Professor Fufaa
  • Body mass index, Study design

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