An educational psychologist analyzes test scores from 50 students who used interactive simulations versus 50 who used traditional methods. The simulation group scored an average of 84 with a standard deviation of 6, while the traditional group averaged 76 with a standard deviation of 8. What is the difference in mean scores, and how many standard deviations does this represent across both groups combined (assuming equal sample sizes)?

Thu, 30 Apr 2026 02:30:10 +0000

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