Drew and Isaac are both healthy one-year-old boys, born within a few days of each other. Drew has been walking since he was 10 months old and Isaac took his first steps at 13 months. This is an illustration of
a. the importance of meeting the basic needs of each child.
b. the child striving for autonomy.
c. the developmental principle that rates of development vary.
d. the proximodistal principle of development.
answer: c
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Language delay
a. usually means the child will not develop language. b. refers to delayed development in all areas of language. c. is a term that is seldom used. d. is commonly seen in high school students.
Today an individual's score on an IQ test indicates
A. the child's mental age, meaning that the child can do all of the things that a child of that age can do. B. how much an individual's score deviates from the average score of others of the same age. C. the ratio of the child's mental age to the child's chronological age. D. the difference between what the child can do on her own and what she can do when she receives assistance.
Among children who play team sports, ______ receive an injury that is serious enough to keep them from playing at least for a while.
a. fewer than 3% b. one-third c. more than half d. almost all, at one time or another
The interquartile range represents how many percentiles?
A. 25% B. 10% C. 50% D. 75%