EACOL (Scale of Evaluation of Reading Competence by the Teacher): evidence of concurrent and discriminant validity

Figures & data

Figure 1 Latent classes analysis for BH-sample.

Abbreviation: EACOL, Scale of Evaluation of Reading Competence by the Teacher.

Table 1 Latent class analysis results

	BIC (L^2)	AIC (L^2)	ssaBIC	Entropy	Parametric bootstrapped likelihood h0 log likelihood value	P-value	Overall bivariate log-likelihood Chi-square
BH-sample
Model 1	8634.059	8531.158	8548.413	–	–	–	16102.95
Model 2	6562.997	6353.384	6388.533	0.987	−4238.579	<0.001	2868.681
Model 3	6058.233	5768.908	5821.95	0.975	−3121.692	<0.001	770.341
Model 4	6026.771	5603.735	5674.67	0.982	−2801.454	<0.00001	673.126
SP-screening
Model 1	18317.67	18198.19	18231.95	–	–	–	5558.043
Model 2	17173.98	16930.62	16999.37	0.819	−9072.097	<0.001	1198.651
Model 3	17089.5	16722.24	16825.99	0.854	−8410.308	<0.001	832.6
Model 4	17078.06	16586.9	16725.66	0.811	−8278.119	<0.00001	686.545
SP-trial
Model 1	6336.019	6242.61	6250.44	–	–	–	1365.364
Model 2	6146.722	5956.495	5972.455	0.827	−3094.305	<0.001	589.026
Model 3	6200.666	5913.52	5937.591	0.853	−2923.247	<0.001	456.106
Model 4	6253.835	5869.821	5902.012	0.889	−2874.432	<0.001	395.367

Abbreviations: BIC, Bayesian information criterion; AIC, Akaike information criterion; ssaBIC, sample-size adjusted Bayesian information criterion; BH, Belo Horizonte; SP, São Paulo.

Figure 2 Latent classes analysis for the São Paulo Screening Sample.

Abbreviation: EACOL, Scale of Evaluation of Reading Competence by the Teacher.

Figure 3 Latent classes analysis for the São Paulo Trial Sample.

Abbreviation: EACOL, Scale of Evaluation of Reading Competence by the Teacher.

Table 2 Values for regression coefficients with its respective robust standard error, P-value and 95% confidence interval for variables of concurrent and discriminant validity

	Outcomes on two latent groups from LCA	Coefficient (β)	Robust standard error	t	P-value	95% confidence interval
Concurrent validity	Accuracy of nonword	−6.50	1.546	−4.21	<0.001	−9.55 to −3.45
	Accuracy of word	−11.12	2.672	−4.16	<0.001	−16.39 to −5.85
	Accuracy of text	−11.27	3.732	−3.02	0.014	−19.71 to −2.83
Discriminant validity	IQ total	1.12	0.845	1.33	0.217	−0.79 to 3.03
	Total difficulties score (SDQ)	−1.60	1.604	−1.00	0.344	−5.23 to 2.03

Abbreviations: LCA, latent class analysis; SDQ, Strengths and Difficulties Questionnaire.

Figure S1 EACOL form B