The Jets and the Sharks are two groups of local youths who regularly—and belligerently—compete against each other. The Robbers Cave experiment would suggest that one way of healing the rift between these groups is to
a. allow the youths to date each other.
b. encourage them to "air" their differences.
c. have them work together on a goal that requires cooperative efforts.
d. have each group note the good qualities of the other group.
c
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To successfully shape roll behavior in Exercise 47,
a. it was necessary to continue to reinforce both precursor behaviors and the target behavior each time they occurred. b. each precursor behavior was no longer reinforced once it occurred with sufficient frequency. c. reinforcement was withheld following the first precursor behavior once it occurred frequently enough and always followed the second precursor behavior. d. reinforcement was withheld following the second precursor behavior once it occurred frequently enough but continued always to follow the first precursor behavior.
Cross-cultural studies show that the majority of teens worldwide are receiving adequate sexuality education
a. True b. False Indicate whether the statement is true or false
Which of the following is the most useful descriptive statistic for measuring dispersion?
a. range b. variance c. mean deviation d. standard deviation
Piaget believed children begin to develop cognitively at
18 months. 1 year. 6 months. birth.