Explain how the range and standard deviation are used as measures of variability.
What will be an ideal response?
One way to easily measure the variability in a distribution is with the range. The range is the difference between the highest and lowest scores in the distribution.
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After a tragic event, like Hurricane Katrina, people often make jokes about the tragedy. Freud might explain this behavior in terms of
A. denial. B. symbolic expression of hostility. C. reaction formation. D. tension reduction.
The escape response can be eliminated (extinguished) when ______.
A. the negative reinforcement is removed B. the aversive event is removed C. the anticipatory pain response is extinguished D. all of these
Deci (1971) studied university students intrinsically motivated to complete a puzzle. Some participants were paid for completing the puzzle and others were not. Relative to the students who were not paid, the students who received payment were:
A) more likely to report enjoying the puzzle. B) more likely to solve the puzzle. C) less likely to solve the puzzle. D) less likely to play with the puzzle after the study.
Experts in solving physics problems tend to ______.
a. represent information more superficially than novices do b. organize problems in terms of physics principles c. organize problems in terms of objects mentioned in the problem d. spend less time analyzing a problem than novices do