Dampness and student-reported social climate: two multilevel mediation models

Table 4 Unstandardised and standardised betas of the total, direct and indirect effects of the mediational models at the school level (N = 222)

	Unadjusted model			Adjusted model
	Beta^a	Stand. beta	95% CI	Beta^a	Stand. beta	95% CI
Teacher-student relationships
Total effect	0.003	0.011	−0.039–0.044	0.00	0.00	−0.047–0.046
Direct effects
Observed mould and dampness → Poor teacher-student relationships	−0.026	−0.098	− 0.069–0.017	−0.029	− 0.108	−0.075–0.017
Observed mould and dampness → Poor subjective IAQ	0.173***	0.361	0.114–0.233	0.165***	0.343	0.096–0.234
Poor subjective IAQ → Poor teacher-student relationships	0.166**	0.297	0.070–0.262	0.175**	0.312	0.075–0.274
Indirect effect	0.029**	0.245^b	0.011–0.050 ^c	0.029**	0.245^b	0.011–0.053 ^c
R²	0.077			0.161
Class spirit
Total effect	−0.007	−0.028	−0.042–0.028	−0.005	−0.020	− 0.042–0.033
Direct effects
Observed mould and dampness → Poor class spirit	−0.030	−0.126	− 0.069–0.008	−0.026	− 0.105	−0.066–0.014
Observed mould and dampness → Poor subjective IAQ	0.172***	0.359	0.113–0.232	0.165***	0.344	0.097–0.234
Poor subjective IAQ → Poor class spirit	0.136**	0.268	0.045–0.226	0.128**	0.251	0.037–0.219
Indirect effect	0.023**	0.210^b	0.008–0.041^c	0.021**	0.192^b	0.006–0.038 ^c
R²	0.064			0.159

^aUnstandardised beta. ^bPartially standardised beta. ^cMonte Carlo confidence intervals. **p < 0.01, ***p < 0.001

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