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By November 1, 2020DApps
Click here to view original web page at www.chegg.com

You have been asked to evaluate the effectiveness of a drug abuse prevention program (DAPP) targeted to 8th-grade middle school students. You know from your public health training that a randomized controlled trial (RCT) will be the best way to determine if the program works to prevent drug use, specifically, alcohol use in 9th grade. You determine your experimental (intervention) and control conditions:

· Experimental. DAPP consists of attending workshops during lunchtime and completing homework assignments.

· Control. For this study, you decide that students in the control condition will receive information about healthy eating.

You set up your RCT:

a. First, you assemble your study cohort of middle school students.

b. Then you collect relevant baseline data on your entire cohort.

c. Next, you randomize your cohort into intervention (experimental) and comparison (control) groups: you randomly assign students to receive either DAPP (intervention) or nutritional information (control condition).

Questions

1. 1,800 8th grade students have parental permission to participate in your study. You randomly assign the students to two equal-sized groups (DAPP or control). The outcome you are interested in is student-reported use of alcohol in the 9th grade. Draw the basic RCT design diagram for your study below. Show the number of students in each study group. Leave space to fill in the numbers of students reporting each outcome (i.e., used alcohol or did not use alcohol), as you will collect this information at follow-up. (2 pts.)

2. You are concerned about adherence (students sticking with their assigned exposure). Propose two ways you could monitor your study to track whether students stayed with their assigned groups. (2 pts.)

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