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Knowledge scores on the pretest and posttest between groups depicting score differences at the two time points. Mean knowledge scores for both groups were the same prior to HPS (P < .001); significantly different at Posttest I (P < .001), where the experimental group had HPS and the control group had not; and Posttest 2 for the control group revealed gains in knowledge above baseline after HPS (P < .001) with the control group.
