Effectiveness of an intervention for reducing social stigma towards mental illness in adolescents

Table 5 Mean scores of the Community Attitudes towards Mental Illness subscales and comparison of the differences in the averages of the control and intervention groups according to whether or not they knew someone with mental illness

		Baseline		Post-intervention		Difference between baseline and post-intervention		T-students	P value
		Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)
		Control	Intervention	Control	Intervention	Control	Intervention
Knows someone	Authoritarianism	25.97 (3.27)	26.88 (3.39)	26.43 (4.06)	24.98 (4.14)	-0.47 (3.01)	1.905 (4.01)	4.511	0.000
	Benevolence	21.53 (4.31)	21.62 (3.92)	21.89 (4.3)	21.61 (4.28)	-0.36 (2.98)	0.01 (3.51)	0.571	0.569
	Social restrictiveness	20.19 (4.42)	19.57 (3.96)	21.81 (5.44)	19.81 (4.52)	-1.62 (3.92)	-0.24 (3.57)	2.388	0.018
	Community mental health ideology	24.24 (5.48)	22.49 (4.9)	24.5 (5.80)	22.03 (5.57)	-0.26 (3.35)	0.46 (4.37)	1.039	0.300
Does not know anyone	Authoritarianism	27.35 (3.13)	28.52 (4.38)	27.3 (3.80)	26.61 (4.07)	0.05 (2.68)	1.91 (4.24)	2.679	0.010
	Benevolence	22.2 (3.61)	23.06 (4.36)	22.48 (4.24)	23.67 (3.28)	-0.28 (2.99)	-0.61 (3.63)	-0.437	0.663
	Social restrictiveness	21.93 (4.47)	21.52 (4.03)	22.83 (4.75)	21.82 (3.26)	-0.9 (3.7)	-0.30 (3.39)	0.783	0.435
	Community mental health ideology	24.7 (4.6)	24.27 (5.82)	25.32 (5.16)	24 (5.29)	-0.62 (3.72)	0.27 (4.81)	1.114	0.268