Marvin is comparing persons from the United States and persons from Russia on their attitudes
toward nuclear weapons.
He places participants into one of two groups based on where a
participant lives, and then asks people in both groups to complete a survey. This research is best
described as
A) predetermined groups research B) a true experiment
C) ex post facto research D) a quasi experiment
C
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What is the most likely reason for the dramatic decrease in the number of children in the average American family over the past several generations?
A. the increase in religious-based sex-abstinence programs B. the availability and use of effective contraceptives C. the decrease in the number of people getting married D. an increase in same-sex couplings
__________ is a single ability that some people assume underlies separate cognitive abilities.
A. The hierarchical model of intelligence B. Metacognition C. General intelligence (g) D. Practical intelligence
The immaturity of the prefrontal cortex has been used to explain
a. why adolescents engage in risky behavior like reckless driving and unprotected sex. b. the 5% increase in brain volume during middle childhood and adolescence. c. the acquisition of conservation skills by adolescents. d. the ability of early adolescents to engage in postconventional moral thinking.
After every rehearsal, the trainer should praise some aspect of the learner's performance
a. True b. False Indicate whether the statement is true or false