What is the general conclusion of researchers who have investigated the influence of genetic factors on attention-deficit/hyperactivity disorder?
a. Genetic factors strongly contribute to this disorder.
b. The concordance rate for MZ twins is high, but symptoms appear to be reactions to other mental disorders.
c. Genetic factors seem to play no role in the development of this disorder.
d. The concordance rate among dizygotic twins is higher than it is for monozygotic twins.
Answer: a. Genetic factors strongly contribute to this disorder.
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According to Freud, either orderliness or messiness suggests fixation at which stage?
a. Genital b. Anal c. Latent d. Oral
Becky has a brain tumor that is confined to the left side of her brain. Based on the results from studies investigating hemispheric lateralization, you should predict that Becky will have the most problems in tasks that require:
a. spatial skills, such as fitting together puzzle pieces b. language and communication c. judging temporal durations d. interpreting and understanding emotions
When we draw conclusions about a population based on data collected from a sample, we are using:
a. the null hypothesis b. the alternative hypothesis. c. inferential statistics. d. none of the other alternatives is correct.
In recent years, arbitration has been criticized for
A. moving too quickly and resulting in short-sighted verdicts. B. not allowing any evidence. C. being too formal and time consuming. D. none of the above