Assessing social competence and antisocial behaviors in children: item response theory analysis of the home and community social behavior scales

Table 1 Model fit statistics for unidimensional and two-dimensional models

Scale/models	BIC	M₂ (df)	p	RMSEA	(95% CI)	SRMSR
Peer relations (Scale A1, 1D)	24,186.692	304.54 (68)	< 0.001	0.080	(0.069; 0.090)	0.069
Self-manag/compliance (Scale A2, 1D)	21,447.134	337.62 (45)	< 0.001	0.109	(0.096; 0.122)	0.071
Antisocial/aggressive (Scale B1, 1D)	23,069.409	502.651 (68)	< 0.001	0.108	(0.097; 0.118)	0.074
Defiant/disruptive (B2, 1D)	21,345.987	171.017 (45)	< 0.001	0.071	(0.058; 0.085)	0.082
Social competence (1D)	45,941.976	1624.549 (368)	< 0.001	0.079	(0.075; 0.083)	0.085
Antisocial behavior (1D)	43,640.189	1944.889 (368)	< 0.001	0.088	(0.084; 0.092)	0.079
Social competence (2D)	45,339.114	1453.484 (367)	< 0.001	0.073	(0.069; 0.078)	0.077
Antisocial behavior (2D)	43,639.63	1932.957 (367)	< 0.001	0.088	(0.083; 0.093)	0.079

Scale A assesses social competence (A1: peer relations, A2: self-management/compliance), scale B assesses antisocial behavior (B1: antisocial/aggressive, B2: defiant/disruptive). In IRT, M₂ (Maydeu-Olivares and Joe 2005) estimates global model-data fit
1D, one-dimensional; 2D, two-dimensional; BIC, Bayesian Information Criterion; df, degrees of freedom; RMSEA, root mean square error of approximation; SRMSR, standardized root mean square residual

ISSN: 2050-7283