A researcher administers a treatment to a sample of participants selected from a population with µ = 80 . If a hypothesis test is used to evaluate the effect of the treatment, which combination of factors is most likely to result in rejecting the null hypothesis?
a. A sample mean near 80 for a small sample
b. A sample mean near 80 for a large sample
c. A sample mean much different than 80 for a small sample
d. A sample mean much different than 80 for a large sample
D
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B. F. Skinner designed an educational practice based on operant conditioning. This practice worked on the assumption that complex tasks that involve conceptual learning along with motor skills can be broken down into small steps. This design was called
a. programmed learning. c. motor learning. b. operant learning. d. conceptual learning.
In the original Milgram experiment, the subjects were in a room separate from the "learners.". When they were in the same room, however, the rate of subjects' obedience
a. dropped from 65% to 40%. c. remained virtually unchanged. b. increased from 65% to 80%. d. was essentially unpredictable.
Which decision-making strategy involves making judgments of likelihood based on how well an example represents a specific category?
A) an algorithm B) goal-state analysis C) the representativeness heuristic D) the availability heuristic
Twin studies for sexual orientation ______.
A. have shown no clear difference in concordance rates between identical and fraternal twins B. can be biased by the "volunteer effect" C. are relatively easy to conduct, due to the large number of twins who are homosexual D. have found similar identical twin concordance rates for homosexual males and bisexuals