PSY 2405 Study Guide - Interrupted Time Series, Time Series, Factorial Experiment
9 Sep 2015
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Their time management skills are measured before and after the program begins for the first group, using a standardized test that yields scores from 1-100 (100 = ideal time management skills). On a pretest, the volunteers score an average of 20; their posttest mean is 35. The average control group pretest score is 28 and their posttest score is 43. The next two questions relate to the following study: a small town decides to outlaw the use of cell phones while people are driving. Before putting the law into effect, officials measure the amount of cell phone use among drivers by placing observers at a busy intersection and recording the percentage of drivers using phones. They do this over six consecutive one-week intervals, each testing week being the middle week of a month (i. e. , six months of pretesting). Research in psych, 7e: study guide, chapter 10.
