# psyc practice tests 1

Research participants are randomly assigned to different groups in an experiment in order to
A)
minimize chances that participants in any group know each other.
B)
increase chances that participants are representative of people in general.
C)
minimize any differences between groups of participants.
D)
increase chances that the different groups have the same number of participants.
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Research participants are randomly assigned to different groups in an experiment in order to
A)
minimize chances that participants in any group know each other.
B)
increase chances that participants are representative of people in general.
C)
minimize any differences between groups of participants.
D)
increase chances that the different groups have the same number of participants.
Professor Delano suggests that because people are especially attracted to those who are good-looking, handsome men will be more successful than average-looking men in getting a job. The professor's prediction regarding employment success is an example of
A)
the hindsight bias.
B)
the placebo effect.
C)
a hypothesis.
D)
a confounding variable.
The case study is a research method in which
A)
a single individual is studied in great depth.
B)
a representative sample of people are questioned regarding their opinions or behaviors.
C)
organisms are carefully observed in a laboratory environment.
D)
an investigator manipulates one or more variables that might affect behavior.