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Creswell_Research_Design_ Qualitative Quantitative and Mixed Methods Approaches 2018 5th Ed

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Alternative Treatment Posttest-Only With Nonequivalent Groups

Design

This design uses the same procedure as the Static Group Comparison, with the exception that the nonequivalent comparison group

received a different treatment.

Group A X1_____________________O

Group B X2_____________________O

Example 8.3 Quasi-experimental Designs

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