A researcher plans to use the reversibility of the desired target behavior as evidence of a treatment effect. She does not want the subject to leave the experiment showing the original, undesirable behavior. Which one of the following designs would be most appropriate for this study?
a. A-B-A design
b. A-B-A-B design
c. interaction design
d. multiple-baseline design
b
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Scaffolding is a term associated with
a. Piaget's concept of conservation. b. Freud's concept of intrapsychic conflict. c. Vygotsky's zone of proximal development. d. Erikson's concept of psychosocial development.
Baker was born 34 weeks after conception and weighed eight pounds at birth. If born in the United States, Baker would best be classified as
a. both low birth weight and premature. b. low birth weight but not premature. c. premature but not low birth weight. d. neither low birth weight nor premature.
In a(n) ______ design, all the subjects provide more than one score, with one mean score per treatment condition.
A. within-subjects B. between-subjects C. within-groups D. between-groups
Recent evidence suggests that opiates kill pain because they ____
a. ?create excitation in some parts of the cerebral cortex b. ?activate gate-control mechanisms c. ?are chemically similar to the body's natural painkillers and can occupy the receptor sites in the brain d. ?block the receptor sites of the body's natural painkillers