Descriptive Statistics Descriptive Statistics Age Race Valid 120 120 Missing 0 0 Mean 14.092 2.100 Std....
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Descriptive Statistics Descriptive Statistics Age Race Valid 120 120 Missing 0 0 Mean 14.092 2.100 Std. Deviation 0.970 0.726 Minimum 13.000 1.000 Maximum 16.000 3.000 Frequency Tables Frequencies for Age Age Frequency Percent Valid Percent Cumulative Percent 13 39 32.500 32.500 32.500 14 43 35.833 35.833 68.333 15 26 21.667 21.667 90.000 16 12 10.000 10.000 100.000 Missing 0 0.000 Total 120 100.000 Frequencies for Race Race Frequency Percent Valid Percent Cumulative Percent 1 26 21.667 21.667 21.667 2 56 46.667 46.667 68.333 3 38 31.667 31.667 100.000 Missing 0 0.000 Total 120 100.000 Paired Samples T-Test Paired Samples T-Test Measure 1 Pretest 95% CI for Cohen's d Measure 2 t df p Mean Difference SE Difference Cohen's d SE Cohen's d Lower Upper - Posttest -28.762 119 < .001 -2.775 0.096 -2.626 0.104 -3.002 -2.246 Note. Student's t-test. Descriptives Descriptives N Mean SD SE Coefficient of variation Pretest 120 13.433 1.352 0.123 0.101 Posttest 120 16.208 1.940 0.177 0.120 Descriptives Plots Pretest - Posttest 16.5 13.0 Pretest Posttest Descriptive Statistics Descriptive Statistics Age Race Valid 120 120 Missing 0 0 Mean 14.092 2.100 Std. Deviation 0.970 0.726 Minimum 13.000 1.000 Maximum 16.000 3.000 Frequency Tables Frequencies for Age Age Frequency Percent Valid Percent Cumulative Percent 13 39 32.500 32.500 32.500 14 43 35.833 35.833 68.333 15 26 21.667 21.667 90.000 16 12 10.000 10.000 100.000 Missing 0 0.000 Total 120 100.000 Frequencies for Race Race Frequency Percent Valid Percent Cumulative Percent 1 26 21.667 21.667 21.667 2 56 46.667 46.667 68.333 3 38 31.667 31.667 100.000 Missing 0 0.000 Total 120 100.000 Paired Samples T-Test Paired Samples T-Test Measure 1 Pretest 95% CI for Cohen's d Measure 2 t df p Mean Difference SE Difference Cohen's d SE Cohen's d Lower Upper - Posttest -28.762 119 < .001 -2.775 0.096 -2.626 0.104 -3.002 -2.246 Note. Student's t-test. Descriptives Descriptives N Mean SD SE Coefficient of variation Pretest 120 13.433 1.352 0.123 0.101 Posttest 120 16.208 1.940 0.177 0.120 Descriptives Plots Pretest - Posttest 16.5 13.0 Pretest Posttest
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