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Psyc312-6
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Pre-test/Post-test controls for...
Selection,
history,
maturation, testing,
interactions with selection,
regression to the mean
Why use a post-test only design?
increased protection from testing effects
BUT lower protection from selection effects
Why use Solomon 4-group design?
main advantage is a gain in external validity
How is a single case design different from a case study?
case study is descriptive
no variables manipulated in CS
no variable control in CS
What is a quasi-experimental design?
a design where we cannot use random assignment to groups but do manipulate an IV and measure a DV
2 types
: non-equivalent and interrupted time series
Author
ctryhurn
ID
25275
Card Set
Psyc312-6
Description
psyc312
Updated
2010-06-30T02:57:44Z
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