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PSY 211 Quasi Design

Quasi-Experimental Designs

QuestionAnswer
Quasi-Experimental Design Experimenter does NOT manipulate variables, no random assignment; Non-Equivalent Group, Time Series, Developmental, Single Subject.
Non-Equivalent Group design Pre-existing difference between groups.
Time Series design Multiple measures before and after treatment.
Developmental Research design Studies relationship between age and other variables; cross-sectional, longitudinal.
Single Subject design Measures effect of IV on behavior of ONE or a few subjects, measured repeatedly over time. No random assignment. Cause & effect, flexible design; BUT low external validity, no statistical controls/analysis.
Created by: pichelle
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