The following data show the means for four treatment conditions as well as the overall means for the columns and the rows. For these data, what numbers are compared to assess the main effect of factor A? A1 A2 B1 M = 20 M = 60 M = 40 B2 M = 30 M = 70 M = 50 M = 25 M = 65
a. 30; 70
b. 20; 30
c. 40; 50
d. 25; 65
d
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A man with a blood alcohol concentration level of 0.30 percent is seen at a hospital. We can guess that this man is ____
a. unconscious or dead c. having trouble walking a straight line b. not an alcoholic d. feeling happy and uninhibited
Predictions made before the collection of data are called:
a. a priori predictions. b. post hoc predictions. c. operational predictions. d. law predictions.
On a variable-ratio schedule, reinforcement is given for the ________
a. next correct response after a fixed number of responses have occurred b. first correct response after varying amounts of time have passed c. first correct response after a fixed amount of time has passed d. next correct response after a varying number of responses have occurred
Overall, which way do American political attitudes lean?
A) very conservative B) moderately conservative C) moderately liberal D) very liberal