You would expect the correlation between height and weight to be
a. zero.
b. positive.
c. negative.
d. a perfect negative correlation.
Answer: b. positive.
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Comparing people from different birth cohorts at the same time is which kind of study?
a. Retrospective b. Introspective c. Cross-sectional d. Longitudinal
Erica can focus on the book that she is looking at, and she is not distracted by her brother running around the house. Erica is demonstrating __________.
A. selective attention B. executive attention C. sustained attention D. theory theory
According to equity theory, what does a romantic relationship resemble?
a. A magnetic field b. A mountain climbing adventure c. A competition d. A business deal
Which statement is the most accurate with regard to the timing of the onset of puberty in youngsters?
a. The timing of puberty is regulated by environmental forces, but these environmental forces are strongly influenced by genetics. b. Puberty is something that is uniquely determined by environmental factors, and genetics play no part in when these changes emerge. c. The timing of puberty is regulated in part by genetics, but these genetic forces are strongly influenced by environmental factors. d. Puberty is something that is uniquely determined by genetics, and environmental influences play no part in when these changes emerge.