According to the description of the independent variable in the article Oh Rats!incorporating the study of
Kim et al.
on prenatal alcohol exposure, the independent variable in a study of the effect of sugar
consumption on tooth decay is most likely to be (a) amount of sugar consumed
(b) number of times teeth are brushed
(c) the amount of flossing that is done
(d) the number of cavities found in teeth
A
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A characteristic or condition (such as smoking) that occurs with greater frequency in people with a disease (such as lung cancer) than it does in disease-free people is known as a:
A) pathogen. B) virus. C) risk factor. D) immunogen.
Stewart is sitting in his office, which is lighted with a bluish neon light, eating a red apple. Even though the apple is bathed in bluish light, he continues to perceive it as red. This illustrates:
A) the trichromatic theory. B) retinal disparity. C) the opponent-process theory. D) color constancy.