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TABLE 5. Effect Size by Type of Research Design

Research design

Effect size

Experiment

Quasi-experiment

Pre–post

Grand total

Experiment

Quasi-experiment

Pre–post


Low 6 3 3 12 50.00% 25.00% 25.00%
Medium 5 5 4 14 41.67% 41.67% 33.33%
High 1 4 5 10 8.33% 33.33% 41.67%
Grand total

12

12

12

36











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