Central Tendency Measures
| Unit # | Preintervention | Postintervention | |||
| Mean | 2.5 | Mean | 52.5 | Mean | 25.5 |
| SE | 0.645497224 | SE | 5.538585192 | SE | 1.136515141 |
| Median | 2.5 | Median | 55 | Median | 26 |
| Mode | #N/A | Mode | #N/A | Mode | #N/A |
| SD | 1.290994449 | SD | 11.07717038 | SD | 2.273030283 |
| Sample variance | 1.666666667 | Sample variance | 122.7037037 | Sample variance | 5.166666667 |
| Kurtosis | −1.2 | Kurtosis | 0.836214643 | Kurtosis | −0.747658689 |
| Skewness | 0 | Skewness | −1.098677553 | Skewness | −0.894074346 |
| Range | 3 | Range | 25.33333333 | Range | 5 |
| Minimum | 1 | Minimum | 37.33333333 | Minimum | 22.5 |
| Maximum | 4 | Maximum | 62.66666667 | Maximum | 27.5 |
| Sum | 10 | Sum | 210 | Sum | 102 |
| Count | 4 | Count | 4 | Count | 4 |
| Confidence level (95%) | 2.054260257 | Confidence level (95.0%) | 17.62624998 | Confidence level (95.0%) | 3.616898413 |
# means number of units.
N/A, Not applicable.