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Table 7 Mean score comparison of the psychological wellbeing and its associated factors before and after the intervention

From: Effects of a mental health promotion intervention on mental health of Iranian female adolescents: a school-based study

  Before intervention After intervention Mean Difference p. value
Mean (SD) Mean (SD)
Self-efficacy
 Experiment 58.57 (10.21) 58.86 (10.35) 0.29 0.67
 Control 58.35 (9.87) 59.28 (9.34) 0.93 0.18
Hopefulness
 Experiment 31.77 (3.78) 31.97 (4.01) 0.2 0.51
 Control 31.64 (3.98) 32.09 (4.00) 1.55 0.18
Life satisfaction
 Experiment 20.64 (6.10) 22.80 (6.74) 2.16 0.001
 Control 21.17 (6.64) 22.52 (6.91) 1.35 0.01
Happiness
 Experiment 1.12 (17.67) 1.18 (19.26) 0.06 0.001
 Control 1.14 (20.85) 1.17 (22.24) 0.03 0.04
Stress
 Experiment 21.72 (5.97) 19.43 (6.85) − 2.29 0.001
 Control 21.31 (5.70) 19.64 (6.87) − 1.67 0.01
Psychological wellbeing
 Experiment 31.46 (16.47) 29.64 (17.69) − 1.82 0.15
 Control 30.29 (13.90) 27.50 (15.73) − − 2.79 0.11