Advanced topic: The value of the harmonic mean
A) is disproportionately influenced by smaller numbers (meaning, smaller sample sizes).
B) is disproportionately influenced by larger numbers (meaning, larger sample sizes).
C) is equidistant from both group sizes.
D) cannot be determined without more information.
A
Psychology
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One of the difficulties associated with matching people to create comparable groups is that
a. matching can lead to incomplete counterbalancing. b. matching can lead to latency effects. c. over time, matching can lead to statistical regression. d. matching on multiple variables often leads to poorly matched pairs.
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According to Freud, _____ refers to the investment of psychic energy in an object or person
a. libido c. instinct b. cathexis d. aggressive drive
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