Kerr and his colleagues, in their studies of the Köhler effect, find that
a. individuals who discover they are the most inferior member of the group will expend greater effort to improve their performance.
b. the productivity of the group declines as the group increases in size.
c. when groups discover some of their members are incompetent, the more competent members work harder to make up for the weaker members.
d. groups will remove the “weakest link” from their group to improve performance.
e. the truth-wins rule usually applies.
a. individuals who discover they are the most inferior member of the group will expend greater effort to improve their performance.
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In the field of developmental psychology, the main reason that the correlational method is used more often than experimental methods is because
a. correlations are more effective at addressing the issue of cause. b. of ethical concerns. c. correlational research is significantly more scientifically rigorous. d. of the availability of computers.
Sarah is in charge of lighting for a school play, and she must find the right "gel," or color filter, to produce a light with a wavelength of about 680 nm. When used on stage, the light will look a. violet
b. green. c. yellow. d. red.
According to the information in the article Yoking Smokingabout operant conditioning, what did
researchers find in terms of abstinence throughout the study? (a) the progressive and control groups were both equally abstinent (b) the fixed and control groups were both equally abstinent (c) the progressive group was by far the most abstinent (d) there were no real effects of contingent reinforcement
Your older brother has a friend who was angry with his wife because they have two sons and he wanted to have a daughter. He thought that she was responsible for having two boys rather than a boy and a girl
What would you tell your brother? a. His friend was correct, she was purposefully having sons instead of a daughter. b. It was not anyone's "fault," but the sperm determined the sex of the offspring. c. It was not anyone's "fault" even though her ova determined the sex of the offspring. d. Sex of the offspring is determined by day of the week. They both should have known what day they were trying to conceive.