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SCS 502 Quiz Chs 8-10 (1)
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SCS 502 Quiz Chs 8-10 (1)
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SCS 502 Quiz Chs 8-10confounding variable - ANS-a variable that varies along with the independent variable
posttest-only design - ANS-an experiment using an independent-groups design in which
participants are tested on the dependent variable only once
pretest-posttest design - ANS-a type of research design (often a quasi-experiment) where
behavior is measured both before and after a treatment or condition is implemented
attrition - ANS-a wearing down over time
Solomon four-group design - ANS-experimental design in which the experimental and control
groups are studied with and without a pretest
independent groups design - ANS-an experimental design in which different groups of
participants are exposed to different levels of the independent variable, such that each
participant experiences only one level of the independent variable
between-subjects design - ANS-A research design in which different groups of participants are
randomly assigned to experimental conditions or to control conditions.
repeated measures design - ANS-An experiment using a within-groups design in which
participants respond to a dependent variable more than once, after exposure to each level of
the independent variable.
within-subjects design - ANS-a research design that uses each participant as his or her own
control; for example, the behavior of an experimental participant before receiving treatment
might be compared to his or her behavior after receiving treatment
random assignment - ANS-assigning participants to experimental and control conditions by
chance, thus minimizing preexisting differences between those assigned to the different groups
order effect - ANS-the order of presenting the treatments affects the dependent variable
practice effect - ANS-a type of order effect in which people's performance improves over time
because they become practiced at the dependent measure (not because of the manipulation or
treatment)
fatigue effect - ANS-deterioration in participant performance with repeated testing
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