A multilevel longitudinal study of obsessive compulsive symptoms in adolescence: male gender and emotional stability as protective factors

Table 4 HLM analysis predicting adolescents’ OCS scores

	Presence score
	Fixed effects without Robust standard errors					Fixed effects with Robust standard errors
	b _i	SE	T	DF	p ₁	b _i	SE	T	DF	p ₁
Cross-sectional results
Intercept	1.27	.04	29.83	32	.001	1.27	.04	32.30	32	.001
Emotional stability	− .19	.08	− 2.49	32	.004	− .19	.06	− 2.94	32	.001
Gender	− .20	.06	− 3.28	32	.003	− .20	.05	− 4.23	32	.006
Over time results
Intercept (time)	.15	.05	3.12	32	.004	.15	.04	4.29	32	.001
Emotional stability	.06	.09	.69	32	.494	.06	.06	1.05	32	.300
Gender	− .11	.08	− 1.35	32	.187	− .11	.07	− 1.50	32	.144

Table 3 summarizes the main results regarding the individual factors examined and is divided into four parts. The upper left part presents the cross-sectional findings without controlling for random effects. The lower left part presents the over time change results without controlling for random effects. The upper right part presents the cross-sectional findings after controlling for random effects at Levels 2 (individual) and 3 (Classroom). The lower right part presents the over time change results after controlling for random effects at Levels 2 (individual) and 3 (Classroom). Controlling for random effects mildly differentiated the results, and therefore, only the results after controlling for random effects were considered and reported in the text (right side of the table)

ISSN: 1744-859X