Dr. Gillis has decided to use ____ in his research to guard against both experimenter bias and participant expectations.?
a. ?confounds
b. ?random selection
c. ?the placebo effect
d. ?the double-blind design
ANSWER:
d
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Dr. Hon is a researcher who studies methods for increasing condom usage among sexually active teens. Dr. Hon would probably be BEST described as a(n) ____
a. personality psychologist b. applied researcher c. social worker d. developmental psychologist
Holding a variable constant is a technique for removing one threat to ____ but it can limit the ____ of an experiment
a. internal validity; external validity b. external validity; internal validity c. internal validity; reliability d. external validity; reliability
An r statistic of -.85 suggests that
a. as one variable goes up, the other variable goes up. b. the two variables are unrelated to each other. c. on average, the second variable is .85 less than the first variable. d. as one variable goes up, the other variable goes down.
A criticism of high-stakes testing is that
standards of learning are not raised high enough. it destroys learning with its focus on test scores. it is not conducted often enough to truly raise standards. it must begin in kindergarten to be effective in high school.