Effect of room temperature on task performance

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Reference no: EM133405303

Questions

1. Aisha wants to examine the effect of room temperature on task performance. First, she randomly assigns participants to three groups. Then she places one group of participants in a room that is set to a temperature of 54 degrees, a second group in a room that is set to a temperature of 72 degrees, and a third group in a room that is set to a temperature of 90 degrees. She then measures the amount of time it takes each group to complete the same task. This design would best represent a(n) ________ design.

a. repeated measures

b. three-group pretest-posttest

c. independent groups

d. pretest-posttest

2. Natasha wants to know whether wearing sunglasses helps while driving. In a counterbalanced repeated measures design, the presence or absence of sunglasses would be varied by

a. having all drivers first drive without sunglasses and then with sunglasses.

b. having half the drivers first drive without sunglasses and then with sunglasses and having the other half first drive with sunglasses and then without sunglasses.

c. having all drivers first drive with sunglasses and then without sunglasses.

d. having half the drivers drive with sunglasses and the other half drive without sunglasses.

Reference no: EM133405303

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