The hospital identified common treatments and developed the activity-based cost per patient by treatment. Determine the experimental units in the study.Lancaster County Hospital uses activity-based costing to determine the cost of serving patients. The researchers compared the mean recall scores of the three viewing groups with an analysis of variance for a completely randomized design.Ī. The data (simulated from information provided in the article) are saved in the accompanying file. After viewing the program, each participant was scored on his or her recall of the brand names in the commercial messages, with scores ranging from 0 0 0 (no brands recalled) to 9 9 9 (all brands recalled). Nine commercials were embedded into each TV show. One group watched a TV program with a violent content code ( V \text V V) rating, the second group viewed a show with a sex content code ( S \text S S) rating, and the last group watched a neutral TV program with neither a V \text V V nor an S \text S S rating. ![]() Do TV shows with violence and sex impair memory for commercials? To respond to this question, Iowa State researchers conducted a designed experiment in which 324 324 324 adults were randomly assigned to one of three viewer groups of 108 108 108 participants each (Journal of Applied Psychology, June 2002 2002 2002).
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