Descriptives Statistic Std. Error Pre Mean 20.81 1.067 95% Confidence Interval Lower Bound 18.66 for Mean Upper Bound 22.96 5% Trimmed Mean 20.65 Median 19.60 Variance 51.246 Std. Deviation 7.159 Minimum 6 Maximum 40 Range 34 Interquartile Range 8 Skewness 309 .354 Kurtosis .267 695 Post Mean 16.24 1.076 95% Confidence Interval Lower Bound 14.08 for Mean Upper Bound 18.41 5% Trimmed Mean 16.19 Median 15.00 Variance 52.098 Std. Deviation 7.218 Minimum 2 Maximum 30 Range 28 Interquartile Range 11 Skewness .210 354 Kurtosis -.685 .695 Followup Mean 15.04 1.082 95% Confidence Interval Lower Bound 12.86 for Mean Upper Bound 17.22 5% Trimmed Mean 14.97 Median 13.12 Variance 52.656 Std. Deviation 7.256 Minimum 3 Maximum 29 Range 26 Interquartile Range 12 Skewness 239 354 Kurtosis -.991 695