What is the Interval of confidence and the effect size?

Program Statistic Sid. Error Knowledge 1.00 Mean 88.4242 1.64687 95% Confidence Interval Lower Bound 85.0697 for Mean Upper Bound 91.7788 5% Trimmed Mean 89.0387 Median 89.0000 Variance 89.502 I. Deviation 9.46054 Minimum 65.00 Maximum 100.00 Range 35.00 Interquartile Range 14.00 Skewness -.778 409 Kurtosis 086 .798 2.00 Mean 80.0303 3.58619 95% Confidence Interval Lower Bound 72.7255 for Mean Upper Bound 87.3351 5% Trimmed Mean 82.1145 Median 86.0000 Variance 424.405 Sid. Deviation 20.60110 Minimum 19.00 Maximum 100.00 Range 81,00 Interquartile Range 20.00 Skewness -1.553 409 Kurtosis 2.092 798 3.00 Mean 80.3636 3.29078 95% Confidence Interval Lower Bound 73.6605 for Mean Upper Bound 87.0667 5% Trimmed Mean 82.1818 Median 82.0000 Variance 357.364 Sid. Deviation 18.90406 Minimum 15.00 Maximum 100.00 Range 85.00 Interquartile Range 19.00 Skewness -1.566 409 Kurtosis 3.258 .798 Relapses 1.00 Mean 2.9697 36277 95% Confidence Interval Lower Bound 2.2308 for Mean Upper Bound 3.7086 5% Trimmed Mean 2.8771 Median 3.0000 Variance 4.343 Std. Deviation 2.08394 Minimum .0D Maximum 8.00 Range 8.00 Interquartile Range 3.00 Skewness .726 409 Kurtosis -.124 798 2.00 Mean 2.3939 29816 95% Confidence Interval Lower Bound 1.7866 for Mean Upper Bound 3.0013 5% Trimmed Mean 2.3485 Median 2.0000 Variance 2.934 Std. Deviation 1.71281 Minimum Maximum 6.00 Range 6.00 Interquartile Range 3.00 Skewness 490 409 Kurtosis ..771 798 3.00 Mean 2.4848 31419 95% Confidence Interval Lower Bound 1.8449 for Mean Upper Bound 3.1248 5% Trimmed Mean 2.4158 Median 3.0000 Variance 3.258 Std. Deviation 1.80488 Minimum .00 Maximum 7.00 Range 7.00 Interquartile Range 3.00 Skewness 400 409 Kurtosis - 382 798