Table 8 Descriptive statistics of all groups on the posttests of writing accuracy, fluency, and complexity
N | Mean | Std. deviation | Std. error | 95% confidence interval for mean | Minimum | Maximum | |||
|---|---|---|---|---|---|---|---|---|---|
Lower bound | Upper bound | ||||||||
WFPOST | Teacher | 25 | 14.12 | 2.02 | 0.41 | 13.26 | 14.98 | 10.00 | 18.00 |
Self | 25 | 15.76 | 1.70 | 0.33 | 15.08 | 16.45 | 12.00 | 18.00 | |
Peer | 25 | 16.56 | 1.55 | 0.31 | 15.91 | 17.20 | 13.00 | 20.00 | |
Total | 75 | 15.50 | 2.01 | 0.23 | 15.04 | 15.97 | 10.00 | 20.00 | |
WAPOST | Teacher | 25 | 15.29 | 2.36 | 0.48 | 14.29 | 16.29 | 12.00 | 19.00 |
Self | 25 | 16.92 | 1.64 | 0.32 | 16.25 | 17.58 | 14.00 | 19.00 | |
Peer | 25 | 16.84 | 1.24 | 0.24 | 16.32 | 17.35 | 15.00 | 20.00 | |
Total | 75 | 16.37 | 1.92 | 0.22 | 15.92 | 16.81 | 12.00 | 20.00 | |
WCPOST | Teacher | 25 | 14.45 | 1.99 | 0.40 | 13.61 | 15.30 | 12.00 | 19.00 |
Self | 25 | 16.57 | 1.87 | 0.36 | 15.81 | 17.33 | 12.00 | 19.00 | |
Peer | 25 | 16.12 | 1.09 | 0.21 | 15.66 | 16.57 | 13.00 | 18.00 | |
Total | 75 | 15.74 | 1.91 | 0.22 | 15.30 | 16.18 | 12.00 | 19.00 | |