Motor development during infancy tends to follow two main guidelines: the _____ rule, whereby motor skills develop from the head to the feet, and the _____ rule, whereby babies learn to control body parts closest to their trunk before moving to the periphery (e.g., hands and feet).
A) cephalocaudal; bipedal
B) cephalocaudal; proximodistal
C) proximodistal; cephalocaudal
D) bipedal; proximodistal
B) cephalocaudal; proximodistal
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The base rate of the actual occurrence of serious violence is ________ percent
a. 1 b. 3 c. 9 d. 27
An infant who develops normally before birth but is then underweight because of a premature birth is classified as
a. small for gestational age. c. preterm. b. anoxic. d. critical.
Suppose that a 3-year-old begins to ask his mother to check under the bad for wolves every night at bedtime. Generalizing from information presented in the text, the best response from the parent would be:
a. to refuse to do this checking, since it will likely lead to the development of a phobia about wolves b. to refuse to do this checking, since it is irrational and might lead to the development of defense mechanisms c. to refuse to do this checking, but instead to tell the child that there is no way a wolf could get into the house d. to check under the bed every night so that the child can better deal with the anxiety he feels about going to bed
A limitation of using questionnaires in survey research is that
a. they are usually more expensive than interviews. b. they are less objective than interviews. c. they cannot be used to collect probability samples. d. the questions may not be answered in the expected order.