Single-sex classes In an experiment to test the eff
Chapter 5, Problem 5.48(choose chapter or problem)
Single-sex classes In an experiment to test the eff ectiveness of single-sex classrooms, girls assigned at random to a coeducational chemistry class gained an average of 12.2 points from a pretest to a posttest. Girls assigned randomly to a single-sex chemistry class taught by the same teacher gained 15.1 points.
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