A good example of a variable ratio schedule is
a. a mother who checks her son's room every fifteen or twenty minutes to make sure he is cleaning it.
b. a gambler who plays a slot machine for hours after winning twenty dollars.
c. a teacher who checks her students' progress after they have completed five problems each.
d. a family that sits down to dinner every day at 5:30, without exception.
B
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For his study, Dai plans on observing a sub-group of teachers over several weeks to understand how they make material culturally relevant. Dai is collecting data from a/an _________.
a. population b. sample c. class d. cohort
One of the important modern applications of classical conditioning is to
A. develop effective treatments for phobias. B. treat eating disorders. C. understand the adaptive functions of behavior. D. design better teaching techniques to use in classrooms.
Which of the following best describes the study of winter phenomena, such as snow and icycles?
A) It is an optional activity, only appropriate for children who live inclimates where these phenomena occur for B) It is a desirable activity that is appropriate only for children wholive in climates where these phenomena occur C) It is best for children who live in cold climates, but acceptable forother children with appropriate concrete examples D) It is an important activity for all young children and must include concrete examples
Under the current code of federal regulations, which of the following types of research is not exempt from review by the IRB?
a. Research conducted in commonly accepted educational settings, involving normal educational practices. b. Research involving the use of educational tests, if subjects cannot be identified. c. Research on a new drug for treating hyperactivity and attention deficit disorder in elementary school children. d. Research involving surveys of public school administrators.