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5 Cards in this Set

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Independent variables are
ones that are manipulated by the expeimenter such as the type of math instruction or comparing math skills of 10 year old boys and girls
Dependent variables are
outcome measures of interest such as the score on a test after special instruction
Confounding variables are
not part of the experiment
IE a flu epidemic or illness or other unexpected influences
Research that is studied at one point in time is called
cross-sectional
research studied at different points in time is called
longitudinal