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| DIRECTIONS: Identify the appropriate hypothesis test for each of the following research situations labeled (a) - (d). Make sure to label your responses clearly! (a) To investigate the relationship between egg consumption and heart disease, A group of age and sex matched patients admitted to a fracture clinic were questioned about their egg consumption using a standard protocol. (b) To evaluate a new back school, patients with lower back pain were randomly allocated to either the new school or to conventional occupational therapy. After 3 months they were questioned about their back pain, and observed lifting a weight by independent monitors. (c) A survey was conducted of all nurses employed at a particular hospital. Among other questions, the questionnaire asked about the grade of the nurse and whether she was satised with her career prospects. (d) A social researcher is interested in studying whether social class inuences life expectancy. The researcher split social class into three categories: upper class, middle class, and lower class. Life expectancy was measured in years. Aresearcher is administering 3 treatments to groups of smokers and measured how many cigarettes per day they used after all treatments were completed. CBT (Cognitive NRT (nicotine replacement CBT+NRT behavioral therapy) therapy) 0 4 1 1 3 2 3 6 2 1 3 0 0 4 0 | a. Perform a complete hypothesis test to determine whether there are any significant differences among the three groups. Test at the .05 level of significance. SHOW ALL YOUR WORK b. Do you need to perform post hocs? Explain but do not compute the post hocs. c. Compute effect size. d. Summarize your findings in a source table. e. Write an interpretation of our results in APA-format (include means and SDs in your interpretation) Directions: Use the following research description to answer items (a) (f). Make sure to label your responses clearly! Aresearcher wants to compare if CBT with medication is superior to GET alone or medication alone, in treating depression. She recruits participants and measures depression as a sum of scores on the Beck depression inventory. (a) What is/are the independent variable(s)? (b) What are the levels of each independent variable? (c) What is the scale of measurement of the independent variable? (d) What is the dependent variable? (e) What is the scale of measurement of the dependent variable? (f) What is the appropriate hypothesis test to analyze the data? Explain. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)
