PSY 290 Study Guide - Final Guide: Internal Validity, Covariance, Treatment And Control Groups
10 Oct 2018
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Manipulated variable: a variable that is controlled, such as when the researchers assign participants to a level of the variable: the variable that is changed. Measured variables: take the form of records of behavior or attitudes, such as self-reports, behavioral observations, or physiological measures: the variable that is observed. Co(cid:374)ditio(cid:374)s: the stud(cid:455)"s i(cid:374)depe(cid:374)de(cid:374)t (cid:448)aria(cid:271)les le(cid:448)els: also referred to as levels. Control variable: any variable that an experimenter holds constant on purpose: kept constant across all participants. Internal validity are there alternative explanations for the results: alternative explanations also known as confounds or potential threats to internal validity, design confound is an experimenters mistake in designing the independent variable. Within groups design might not be possible or practical. When people see all levels of independent variable and then change the way they act. The independent variable is the gender of the face.
