A __________ includes all the subgroups within a given population in numbers that are proportionally equal to those found in that population
a) selective sample
b) survey group
c) biased sample
d) representative sample
d
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According to the central limit theorem, the standard error for a sample mean becomes smaller as the sample size increases
Indicate whether the statement is true or false
By seven years of age, self-descriptions shift from
a. categorical activities to relational statements. b. categorical activities to concrete statements. c. relational statements to categorical statements. d. relational statements to abstract statements.
Stephanie, who lives in California, is preparing to compete in track and field at the Olympics in London. She plans to arrive in London
A. two weeks before competing, because her peripheral clocks in her muscles and lungs take longer than her SCN to adjust to a new time zone. B. two weeks before competing, because her SCN requires this time in order to adjust to the new time zone. C. a couple of days before competing, because her SCN and peripheral clocks only require a short time to adjust to the new time zone. D. a couple of days before competing, because eastern travel is easier on her SCN and peripheral clocks than the western travel she experienced competing in Beijing.
We make self-serving attributions for all of the following reasons EXCEPT that we
a. are concerned with obtaining accurate feedback about ourselves to use in making future decisions. b. try to maintain our self-esteem whenever possible. c. want other people to think well of us. d. have more information available to us than others do about our past history of successes.