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20 Cards in this Set

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single level 2 factors design
IV is either between subjects or within subjects.
may be manipulated or subject variable
independent group 1 factor design
between subject
iv manipulated
equiv groups by random assignment
matched groups 1 factor design
between subject
iv manipulated
equiv groups by matching
nonequivalent groups 1 factor design
between subject
subject variable
not equal groups
repeated measures 1 factor design
within group
manipulated by def
tested once or more than once
inter.v
history
events taking place b/w time of measurements, not related to IV

could be family/friends
inter.v
testing
problems that result from repeated measurement of same person
inter.v
instrumentation
changes in measuring device during course of exp
inter.v
statistical regression
participants selected b/c some score/measurement turns out to be extreme

extreme scores change over time
inter.v
selection
participants in one group differ from initially from those in other group
inter.v
mortality
participants drop out or refuse to take part in exp.
inter.v
selection-maturation interaction
1 group of participants changes along a given dimension faster than other group
inter.v
diffusion or imitation of treatments
diffusion: participants communicate w/ each other-->reduces differences among groups
witness
helps us understand value, relevance, limitations of new info for research process
Leipzig model
Wundt-normal cognitive processes
little differentiation b/w participant and experimenter in terms of expected roles or social status
Paris model
hypothesis/abnormal psych
clear distinction b/w roles of participant and experimenter; 1 never play role of other

greatly influenced American psychological experimentation
biased data
personal equation
=b/c of one's physiological and psychological makeup, there are differences in way observe world.
biased data
interrater reliability
higher the correlation, the less the ratings represent inconsistent subjective factors of rators

low correlation=better operational def. or researcher training needed
crainiometry
relationship b/w brain size and intelligence
Burt
intentional fraud data with monozygotic twin study
(reported exact same correlations for 3 samples)