In an experimental study of the effects of practice on reaction time, practice would be the:
a. control group.
b. independent variable.
c. experimental group.
d. dependent variable.
b
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Children with frequent nightmares or night terrors:
a. need stern discipline to help them get over it. b. will not get any better if you let them sleep with the lights on. c. may have a stressful home environment that is contributing to the problem. d. None of these is accurate.
The language acquisition device is best described as a/an
A) cognitive structure or scheme acquired during Piaget's sensorimotor period of cognitive development. B) learned cognitive structure or scheme for distinguishing phonemes from morphemes. C) mental representation of speech sounds found in one's native language. D) hypothetical mechanism in the brain that helps children detect and learn the rules of language.
Which of the following statements regarding marijuana is NOT true?
A. Synthetic marijuana is unregulated and has unpredictable effects. B. Fewer adolescents today perceive much danger associated with marijuana use. C. Marijuana can impair memory and attention. D. Marijuana use by adolescents has recently decreased.
The ability to use word formation processes such as noun compounding in new and creative situations:
A. develops over the school years and is subject to individual differences so that so that even some adults are better at it than others. B. develops over the school years but all typically developing adults eventually reach the same level of ability. C. is fully developed by the time enter the school age years, although children do increase their speed at creating compounds. D. requires extensive schooling in order for adults to become even moderately capable with it.