Telegraphic speech is characterized by
a. overextension.
b. lengthy sentences.
c. egocentric speech.
d. nouns, verbs, and some modifiers.
d
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Robert watched informative educational programming during his preschool years, while Alex watched violent or entertaining programming. Now that both are in high school, Robert is likely to
a. enjoy watching violent or entertaining programming more than Alex. b. enjoy watching violent or entertaining programming less than Alex. c. have lower grades in English, math, and science than Alex. d. have higher grades in English, math, and science than Alex.
Researchers are training pigeons to peck to receive food pellets when they see gratings but withhold their pecks to receive pellets when they see a uniform gray circle. This procedure will help the researchers determine
A. whether or not pigeons can see color. B. whether or not pigeons have feature detectors. C. how much contrast a grating must have before it looks different from the gray circle to a pigeon. D. whether pigeons are intelligent enough to learn to peck one stimulus rather than another.
Which of the following psychoactive substances is in the same class as caffeine and methylphenidate?
A. Cocaine B. Alcohol C. Nicotine D. Marijuana
Which of the following would most likely be used for calculating a Certain Safety Index?
a. TD99 and ED50 b. TD50 and ED50 c. TD1 and ED99 d. TD99 and ED1