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21 Cards in this Set
- Front
- Back
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Cross-sectional design
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compare groups of participants of different (ages) on some set of variables
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Cohort Effect
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when shared life experiences of people in same age group and culture behave similarly, but differently from people of other ages.
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longitudinal design
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follow the same people over time to observe develpmental changes--thus cntroling for cohort effects.
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time-series design
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Like longitudinal but with multiple measurements taken before and after a manipulation
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confounded
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When variables vary at the same time
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Artifact
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the effect of an independent variable thats actually the result of some other variable that wasn't properly cntrld. THE RESULT OF CONFOUNDING.
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confounding variable
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uncontrolled variables that might affect the outcome of the study.
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multivariate correlational designs
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correlational designs with more than 2 variables
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regression equation
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"what is the best equation for predicting variable Y from variable X?"
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demographic variables
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Characteristics of the same (age, sex, etc.)
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experimenter expectancy
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Tendency of researchers to see what they expect to see
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filler items
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items meant to draw participant's attention away from the real purpose of the measure
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moderator variable
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a variable that seems to modify the relationship between other variables.
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cross-cultural research
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seeing how psychological phenomena studied here might generalize across other cultures.
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multiple correlation
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correlating one variable with an entire set of variables
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canonical correlation
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correlating one set of variables with another set of variables
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partial correlation
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correlating one variable with abother after statistically removing the effects of a 3rd variable
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path analysis
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tests the strength of evidence for a specific causal model using correlational data
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coefficient of determination
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(r2)--tests how useful a correlation might be in a prediction
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control group
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a group that's just like the experimental group with all variables except the independent variable that defines the groups
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experimental group
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The group you are trying to learn about.
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