Brightness constancy results in the tendency to perceive:
a. all stimuli as brighter than they really are
b. brightness as remaining the same in changing illumination
c. colors are grayish in dim light
d. that the sun produces white light
B
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Research on the use of a combined approach to the treatment of mental disorders has demonstrated that __________.
A. adding medication to psychosocial treatment for depression does not improve clinical outcomes B. psychotherapy alone yields the best results C. psychotherapy in combination with a placebo or medication yields the best results D. adding medication to psychosocial treatment for anxiety does not improve clinical outcomes
Hippocampal damage impairs spatial memory
a. True b. False Indicate whether the statement is true or false
The null hypothesis for a two-tailed independent-groups t test states that a. H0: m1 ¹ m2
b. H0: m1 = m2. c. Ha: m1 ¹ m2. d. Ha: m1 = m2.
A ____ schedule refers to a reinforcer occurring only after an unchanging number of responses take place
a. fixed-interval c. variable-interval b. fixed-ratio d. variable-ratio