A researcher ties a string to an infant's foot and ties the other end to a mobile. The infant
moves her foot; the mobile moves causing the infant to smile. The infant then kicks her foot
several more times.
Two days later, the researcher re-administers the same procedure and the
infant immediately kicks her foot to move the mobile. What type of paradigm is this researcher
utilizing?
A) habituation B) response expectancy
C) fixed trial paradigm D) instrumental conditioning
D
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Henry is able to draw lines and successfully fit differently shaped puzzle pieces into their corresponding slots in a shape-sorter. His fine-motor skills are normative for a ___ -year-old.
A. 2 B. 3 C. 4 D. 5
Stan and Samantha are the proud parents of three little girls. They decide to have one more child because it seems like they are “due” to have a boy. Stan and Samantha think that most families have both boys and girls therefore they figure the probability the next child will be a boy is high. Stan and Samantha:
A. are correct, since the odds of each sex are 50-50, they are due for a boy B. have confused representativeness with probability C. have thoughts of boys more available to them therefore they feel it will occur D. have three girls that have primed the “boy” concept
Ghrelin is a neuropeptide secreted from the __________ that __________.
A. stomach; initiates eating B. pancreas; inhibits eating C. liver; suppresses insulin secretion D. duodenum; controls CCK levels in the plasma
This approach successfully decreased the age at onset of sexual activity, increased contraceptive use, decreased frequency of sex, and decreased pregnancy rates by 30%.
A. "Just Say No" programs B. Abstinence-based sex education C. Comprehensive health-oriented services D. Reducing access to contraceptives