General digital competences of beginning trainees in commercial vocational education and training

Empirical Research in Vocational Education and Training

Table 3 Confirmatory factor analysis nested model comparisons

	AIC	BIC	LL	Deviance	df	Δχ2	Δdf	p
One dimension 1 PL model	10,479.46	10,575.46	− 5216.73	10,433.46	23
Five dimensions 2 PL model	10,159.15	10,384.53	− 5025.57	10,051.15	54	382.31	31	< 0.001
One dimension 2 PL model	10,337.01	10,520.66	− 5124.50	10,249.01	44
Five dimensions 2 PL model	10,159.15	10,384.53	− 5025.57	10,051.15	54	197.87	10	< 0.001
Five dimensions 1 PL model	10,240.87	10,395.30	− 5083.43	10,166.87	37
Five dimensions 2 PL model	10,159.15	10,384.53	− 5025.57	10,051.15	54	115.72	17	< 0.001

AIC Akaike information criterion, BIC Bayesian information criterion, LL log-likelihood, 1 PL Rasch Model, 2 PL Birnbaum Model