What type of research design is used when people of different ages are compared at the same point in time?
A. longitudinal
B. sequential
C. correlational
D. cross-sectional
Answer: D
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For an F value to be significant it must
a. be positive. b. equal 1.0. c. exceed the tabled value. d. be less than the tabled value.
The two basic kinds of cells in the nervous system are _____
a. neurons and glia b. dendrites and axons c. ribosomes and lysosomes d. neurons and axons
The boundaries between words in spoken language
a. are just as distinctive as the boundaries between words in written language. b. are more distinctive in English than in other languages. c. are often missing, so that two words are not separated by an actual pause. d. are difficult for children to perceive, though adults rarely make perceptual errors.
Elena and Aidan are both writers and spend a great deal of time reading to their young son. This is an
example of A) a passive gene–environment correlation. B) an evocative gene–environment correlation. C) an active gene–environment correlation. D) niche-picking.