Which of the following is a disadvantage of using a within subjects design?
a. the variability due to participants cannot be estimated statistically
b. treatment order may have an effect on the dependent variable
c. a large number of participants is required
d. the experimental and control groups may not be equivalent to one another
B
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During REM sleep, neurons that fire spontaneously are present in the ________
a. medulla. b. cerebellum. c. reticular activating system. d. pons.
Limited-resource models suggest that what changes during development is
a. the size of the psychological structures. b. the proficiency in employing control processes. c. the capacity of working memory. d. the efficiency of information processing.
Although Hispanic Americans are a diverse group, the common thread among them is their Mexican heritage and culture
Indicate whether the statement is true or false.
The______ is a brain area that inhibits activating systems during sleep.
A. ventrolateral preoptic nucleus B. SCN C. raphe nucleus D. locus coeruleus