Table 2 Comparison of questionnaire scores before and after of intervention
From: Preparation and evaluation of a multimedia oral health education software for teenagers
Intervention | Mean ± SD | ∆(Delta) |
|---|---|---|
(95% Confidence Interval of the Difference) Mean ± SD | ||
Before After | 9.71 ± 2.97 13.03 ± 1.53 | (2.68 - 3.95) 3.31 ± 2.67 |
P - value* | < 0.001 | - |