You are conducting an experiment to determine if listening to music while studying improves learning. If there was no difference between the test performance of the experimental and control groups, then we can conclude that
a. extraneous variables were not controlled.
b. the two groups were not randomly assigned.
c. listening to music while studying improves learning.
d. listening to music while studying had no effect on learning.
D
Psychology
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SAMe (S-adenosyl-L-methionine) is a dietary supplement that has some research support for its possible use in treating
A. impotence. B. depression. C. Parkinson's disease. D. diabetes.
Psychology
Play in middle childhood becomes ____
a. less socially based and more rigid b. less complex and more aggressive c. more complex and more rule-based d. more simplistic and less socially based
Psychology