In the context of experimental design, double blind refers to the situation in which
a. neither the experimenter nor the participant knows which experimental treatment the participant is receiving. b. the experimenter randomly chooses which group and treatment sequence each participant is assigned to.
c. neither the data analyst nor the participant knows what hypothesis is being tested.
d. two investigators analyze the data independently, and both are kept unaware of the identity of all participants.
How many independent variables are in this experiment?
a) one (time of day)
b) one (dose of drug)
c) two (species and dose of drug)
d) two (time of day and dose of drug)
______________ is the position that quantitative and qualitative research methods and philosophies can be combined.
a. Similarity hypothesis
b. Comparison thesis
c. Compatibility thesis
d. Compatibility idea
Which of the following threats to internal validity is most likely to be a problem in the nonequivalent comparison group design?
a. history
b. maturation
c. selection bias
d. all of the above are potential problems
This design is a
a) 2X3 between-participants factorial design.
b) 2X3 within-participants factorial design.
c) 2X2 mixed-model factorial design.
d) 2X2 between-participants factorial design.
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