An environment in which important variables can be controlled is called a(n):
a. open system.
b. closed system.
c. quasi-experimental design.
d. field experiment.
B
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Shifting onto daylight saving time impairs many people's alertness and performance
a. True b. False Indicate whether the statement is true or false
The initial steps in cognitive-behavioral therapy usually requires that the client ____
a. learn to relax b. increase his or her activity in the world so that reinforcement is possible c. replace irrational thoughts with more rational alternatives d. become aware of his or her thoughts and emotions
Which of the following drugs poses the greatest risk for early delivery of a premature baby?
a. penicillin b. marijuana c. cocaine d. high blood pressure medication
Research on Piaget's cognitive-developmental theory indicates that
A) he overestimated the competencies of infants and young children. B) children generally reach their full intellectual potential, regardless of education and experience. C) children's performance on Piagetian problems can be improved with training. D) his stagewise account overemphasizes social and cultural influences on development.