Which measure of central tendency can be most affected by a single extreme score?
A) mode
B) standard deviation
C) mean
D) median
C
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What specialization do dolphins and whales show in their sleep? a. Their sleep is composed entirely of REM sleep
b. They sleep twice as long in summer as they do in winter. c. They can sleep in half of the brain and not the other. d. They take 5- to 10-minute naps each hour, all day.
Research by Paul Ekman and Wallace Friesen indicates that subjects are generally successful in identifying (from facial cues in photographs) all EXCEPT which of the following emotions?
a. fear b. anger c. happiness d. contentment
Using brain imaging techniques to determine which brain areas are activated when a person remembers an emotional event is an example of a(n) ______ study.
A. correlational B. experimental C. case D. survey
According to Cattell and Horn, fluid intelligence refers to
a. ideas that relate abstractly to liquids. b. the ability to perceive relationships and solve relational problems independent of experience in school. c. acquired knowledge and ability. d. factors that are specific to a particular test type.