A researcher is exploring the physiological causes of certain learning disorders. This study is ex post facto because the

a. subjects are already known to differ on the dependent variable.
b. subjects are already known to differ on the independent variable.
c. a and b
d. None of these are true.


A

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The core of a good infant-toddler program is

a. an educated, stable staff. b. good equipment. c. a very large space. d. a good group of infants.

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Creative drama is:

a. not unlike creative play in general. b. similar to performing a play. c. an important part of the preschool curriculum. d. none of the above.

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Which of the following are used most frequently by adolescents:

A. alcohol and marijuana B. alcohol and tobacco C. tobacco and marijuana

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Young children naturally focus on illustrations rather than text when reviewing picture books

a. True b. False

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