A drug's pharmacodynamics refers to its
a. movements through the body
b. biochemical and physiological effects and mechanisms of action
c. effects on behavior and mental processes
d. metabolic properties
b
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The relationship between TV viewing and aggressive behavior might be influenced by poor social adjustment. Social adjustment here is regarded as a(n) ____ problem
a. restricted range b. shrinkage c. third variable d. lack of linearity
A documentary film director made a series of films about the lives of a set of children when they were 7, 14, 21, 28, and 35 years of age, i.e, the films 7-Up and 14-Up... What type of research design is this?
a. longitudinal b. cross-sectional c. sequential d. program evaluation
One of the best ways for Johann's mom to promote peer interaction skills is for her to
A) provide opportunities for Johann to play with peers. B) avoid arranging frequent play dates that may overwhelm Johann. C) avoid providing specific suggestions to Johann on how to interact with other children. D) prevent Johann from interacting with children with whom he has conflicts.
Which of the following pairs of wavelengths is the most difficult for children and adults to discriminate?
a. 480 nm and 510 nm b. 540 nm and 570 nm c. 590 nm and 620 nm d. 620 nm and 650 nm