The one-group pretest-posttest design is prone to which of the following threats to internal validity?
A. regression toward the mean
B. maturation effects
C. maturation effects and testing effects
D. regression toward the mean, maturation effects, and testing effects
Answer: D
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According to Piaget, moral development, like cognitive development, proceeds in stages. The sequence of stages is as follows:
a. incipient cooperation, heteronomous morality, and autonomous cooperation. b. autonomous cooperation, heteronomous morality, and incipient cooperation. c. heteronomous morality, incipient cooperation, and autonomous cooperation. d. incipient cooperation, autonomous cooperation, and heteronomous morality.
The thin membrane that moves in and out in response to sound waves colliding with it and passes the vibration on to the middle ear is the
a. auditory nerve. b. basilar membrane. c. tympanic membrane. d. auditory ossicle.