The major problem with family incidence studies that ask whether diseases "run in families" is that even when they find a higher prevalence of a certain illness in families with one ill proband,
a. the finding is consistent with both genetic and environmental causation.
b. they cannot determine if a single gene or multiple genes are involved.
c. they cannot determine if dominant genes or recessive genes are involved.
d. they can only study families with identical twins.
Answer: a.
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A design in which each subject receives all levels of an independent variable is called a(n)
a. independent samples t-test. b. repeated-measures design. c. between-subjects design. d. correlation.
If 12% of the American population is Hispanic, what percentage of a stratified sample would be Hispanic?
a. 6% c. 12% b. 24% d. 88%
Gillian is assembling a bookcase. She studies one of the diagrams in the instructions and then looks for the parts she needs and begins to put them together
According to the working memory model discussed in your textbook, which part of Gillian's memory remembers what the parts in the diagram looked like while she works? A) the phonological loop B) the central executive C) the episodic buffer D) the visuospatial sketchpad
According to current knowledge of the biological factors involved in schizophrenia, a person given this diagnosis would likely have ____.?
a. ?large ventricles in the brain b. ?high levels of serotonin in the hypothalamic area of the brain c. ?an extra-large occipital lobe region d. ?reduced parietal lobe activity