Heritability refers to ________ not ________
a. stereotype effect; self-fulfilling prophecies
b. positive labeling; negative labeling
c. within-group differences; between-group differences
d. aptitude; achievement
e. validity; reliability
c. within-group differences; between-group differences
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John was recently diagnosed with a mild case of Parkinson's disease. He tells his doctor that he wants a thalamotomy. Is this a reasonable request?
A. No. Removing the thalamus will cause his symptoms to worsen. B. No. Recent research shows that the thalamus is not involved in the symptoms of Parkinson's disease. C. No. The procedure is used only in severe cases and is appropriate only after other treatments have been used. D. Yes. A thalamotomy is a common treatment for mild Parkinson's disease.
In times of war, combat can be so savage that some soldiers literally die of fear caused by
a. a parasympathetic rebound. b. the underreaction of the sympathetic system. c. adrenaline poisoning. d. opponent-process feedback.
Of the 4,000 students at Meridian Community College, 250 were randomly selected to be surveyed regarding their views on the on-line learning classes. The students who were randomly selected and surveyed would constitute the
a. population. b. experimental group. c. representative sample. d. control group.
Felicity and Samantha are identical twins. They are
A) probably both right-handed. B) more likely than ordinary siblings to differ in hand preference. C) probably both left-handed. D) less likely than fraternal twins to differ in hand preference.