Question

Laura has developed a new treatment to increase spatial ability. She randomly assigns students to either her intervention or a control condition. In the treatment condition students engage in working puzzles for twenty minutes a day for 10 days. Unfortunately, students don"t like her intervention and refuse to do puzzles for all of the days. When she examines post-test means on the spatial ability measure, there are no differences between her treatment and the control condition.
Which of the following designs best describes Laura's study?
a. Factorial
b. Post-test only control group
c. One group pretest-posttest
d. Static group comparison

Answer

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