How many pairs of chromosomes does the normal human being have?
A. 46
B. 22
C. 44
D. 23
Answer: D
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A real effect of the independent variable is defined as _________
a. all possible effects including no change in the dependent variable b. any effect that produces a change in the dependent variable c. an effect that produces an increase in the value of the dependent variable d. an effect showing no change in the dependent variable
What is one criticism of questionnaire-based approaches to studying personality?
a) They are not based on statistical analysis. b) Psychodynamic theory forms the basis of this approach. c) What we obtain has no relation to the consistency of behavior. d) What we obtain is a description of traits that are statistical entities.
Dr. Hefner wants to test the effects of Viagra on sexual desire. Dr. Hefner's research assistant (who is unaware of what the study is testing) randomly gives 50 males the drug while 50 males receive a placebo
(The study subjects are also unaware of the treatment which they are getting.) This would be described as a a. correlational study. b. double-blind study. c. study with no control group. d. study with two independent variables. e. study that would be difficult to replicate.
Follow-up research shows that success at object search tasks coincides with
A) the development of autobiographical memory. B) the onset of telegraphic speech. C) rapid development of the frontal lobes of the cerebral cortex. D) the development of reflexive schemes.