Practical validation framework for competence measurement in VET: a validation study of an instrument for measuring basic commercial knowledge and skills in Switzerland

Empirical Research in Vocational Education and Training

Table. 4 Model characteristics of simuLINCA

Model characteristics	1 PL—IRT model
	One-dimensional	Two-dimensional
	One-dimensional	Skill-based	Knowledge-based
N	1365	1365
N items	76	43	33
EAP/PV reliability	0.877	0.857	0.778
WLE reliability	0.892	0.874	0.721
Item separation reliability	0.997	0.997
Deviance	135,839.23	134,985.85
Estimated parameters (number)	116	118
AIC	136,071.23	135,221.85
Variance	0.391	0.481	0.368