What percentage of the general population experiences fear of needles and injections?
A. 1%
B. 10-20%
C. 30-40%
D. 60-70%
Answer: B
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In an experiment, a confounding variable is a(n) ____
a. example of the third-variable problem b. example of the directionality problem c. limitation on the ability to manipulate the independent variable d. threat to internal validity
About what percentage of adolescents identify themselves as gay or lesbian?
A) 1–2% B) 3–4% C) 5–6% D) 7–8%
According to the text, what would be the best example of rule-governed behavior?
a. Stopping at a stop sign because it's the law. b. The faculty determines rules and procedures in academic senate. c. Zoe always says, "Please" when making a request. d. All of these
Charles finds that the correlation coefficients between his predictor variable and three different outcome variables are +.23, +.45, and –.53
Which correlation coefficient indicates the strongest linear relation that Charles found between his predictor and outcome variables? a. +.23 b. +.45 c. –.53 d. not enough information is provided