Author Question: If participants get tired because the testing session is too long, that fatigue is considered to be ... (Read 63 times)

Brittanyd9008 · **on:** Jun 19, 2018

If participants get tired because the testing session is too long, that fatigue is considered to be a _____ effect.

a. treatment c. testing
b. history d. maturation

Question 2

The null hypothesis in a pretest posttest experiment states that feedback does not improve performance. The correct alternative hypothesis for this experiment is _____.

a. feedback affects performance c. feedback reduces performance
b. feedback improves performance d. any of these

Zebsrer · **Reply #1 on:** Jun 19, 2018

Answer to Question 1

D
Fatigue is an internal change that occurs because of the passage of time.

Answer to Question 2

B
When the null hypothesis is directional, the alternative hypothesis should be directional and in the same direction.