If the state of Utah were to use an interrupted time-series design to study the effects of raising its speed limit to 65 mph, what type of confounding variables might present a problem?
A) Confounding due to selection and cohort effects.
B) Confounding due to history and instrumentation.
C) Confounding due to maturation and testing.
D) Confounding due to regression to the mean
Answer: B
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a. The Federal Reserve Board b. The International Monetary Fund c. The Department of the Treasury d. The Congress
The ethical standards for psychologists
A) include the need for honesty and truthfulness. B) focus primarily on issues of child abuse. C) have been in effect for nearly 250 years. D) are of little real importance in research.
A potential problem facing nonequivalent control-group designs is that
A) unequal group size may hinder the analyses. B) these designs are unethical. C) groups may differ on variables other than the dependent variable. D) these designs work better with animals than with humans.
If you are competing for your party's nomination for the U.S. House of Representatives, you must first participate in a(n) __________ election
a. initiative b. caucus c. primary election d. referendum election