Two groups of students (Group A and Group B) participate in standardized agility tests. The results show that Group A is considerably more agile than Group B and that agility is heritable. What can we conclude?

a. The genetic variability between the two groups is high.
b. Genetic factors play a role in agility.
c. The genetic variability within each group is low.
d. Environment has no effect on agility.

ANSWER:
b

Psychology

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Klaczynski's research found that logical thinking improved with age and education, but not with

A. life experiences. B. practice of formal thinking. C. measurements on intelligence tests (IQ). D. parent involvement.

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Jeff has been having unpleasant, recurring dreams and is feeling a bit depressed. His friend, a good therapist, suggested he try to _____ in order to stop them in a healthy way

a) stay awake for several days b) take heavy duty sleeping pills for a month c) admit himself to a psych ward d) work on lucid dreaming

Psychology