Which of the following is true regarding the chi squared test of independence?
a. It requires a numerical (quantitative) score for each individual.
b. The sample must be random
c. Population parameters such as m and s must be known.
d. The observations must not be independent.
Answer: b. The sample must be random
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Which of the following statements reflects current research about the biological causes of autism spectrum disorder (ASD)?
A) So far, researchers have found no biological causes for ASD. B) The problem is much more likely to be with the brain's anatomy rather than with brain functioning. C) There are probably multiple biological causes, leading to a common "brain problem." D) Neurotransmitter dysfunction explains problems in the cerebellum, but not the brain stem.
What kind of thinking acknowledges that adult predicaments must sometimes be resolved in relativistic terms?
A. dialectical thinking B. moralistic thinking C. postformal thought D. logical thinking