Psychometric properties of the adapted instrument European Health Literacy Survey Questionnaire short-short form

Mialhe, Fábio Luiz; Moraes, Katarinne Lima; Bado, Fernanda Maria Rovai; Brasil, Virginia Visconde; Sampaio, Helena Alves De Carvalho; Rebustini, Flávio

doi:10.1590/1518-8345.4362.3436

person Fábio Luiz Mialhe

schoolUniversidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Piracicaba, SP, Brazil.

0000-0001-6465-0959

person Katarinne Lima Moraes

schoolUniversidade Federal de Jataí, Curso de Enfermagem, Jataí, GO, Brazil.

0000-0001-6169-0461

person Fernanda Maria Rovai Bado

schoolUniversidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Piracicaba, SP, Brazil.schoolSecretaria Municipal de Saúde, Piracicaba, SP, Brazil.

0000-0002-7974-5456

person Virginia Visconde Brasil

schoolUniversidade Federal de Goiás, Faculdade de Enfermagem, Goiânia, GO, Brazil.

0000-0002-0279-9878

person Helena Alves De Carvalho Sampaio

schoolUniversidade Estadual do Ceará, Benfica, Fortaleza, CE, Brazil.

0000-0001-5353-8259

person Flávio Rebustini

schoolUniversidade de São Paulo, Escola de Artes, Ciências e Humanidades, São Paulo, SP, Brazil.

0000-0002-3746-3266

Corresponding author: Fábio Luiz Mialhe E-mail:
mialhe@unicamp.br https://orcid.org/0000-0001-6465-0959

Authors’ Contribution:

Study concept and design: Fábio Luiz Mialhe, Katarinne Lima Moraes, Fernanda Maria Rovai Bado, Virginia Visconde Brasil, Helena Alves De Carvalho Sampaio, Flávio Rebustini. Obtaining data: Katarinne Lima Moraes, Fernanda Maria Rovai Bado, Virginia Visconde Brasil, Helena Alves De Carvalho Sampaio. Data analysis and interpretation: Fábio Luiz Mialhe, Flávio Rebustini. Statistical analysis: Flávio Rebustini. Drafting the manuscript: Fábio Luiz Mialhe, Katarinne Lima Moraes, Fernanda Maria Rovai Bado, Virginia Visconde Brasil, Helena Alves De Carvalho Sampaio, Flávio Rebustini. Critical review of the manuscript as to its relevant intellectual content: Fábio Luiz Mialhe, Katarinne Lima Moraes, Fernanda Maria Rovai Bado, Virginia Visconde Brasil, Helena Alves De Carvalho Sampaio, Flávio Rebustini

All authors approved the final version of the text.

Conflict of interest: the authors have declared that there is no conflict of interest.

Associate Editor:

Ricardo Alexandre Arcêncio

ITEM	UNICO*			ECV†			MIREAL‡
ITEM	Sample 1	Sample 2	Complete Sample	Sample 1	Sample 2	Complete Sample	Sample 1	Sample 2	Complete Sample
ITEM 1	0.93	0.98	0.98	0.72	0.83	0.85	0.52	0.28	0.30
ITEM 2	0.99	0.99	0.98	0.95	0.87	0.86	0.15	0.33	0.29
ITEM 3	1.00	0.98	0.99	0.99	0.86	0.96	0.05	0.28	0.13
ITEM 4	0.99	0.99	1.00	0.92	0.91	0.98	0.21	0.21	0.10
ITEM 5	0.99	0.98	0.99	0.93	0.85	0.90	0.17	0.30	0.22
ITEM 6	0.98	0.99	0.98	0.84	0.88	0.85	0.35	0.32	0.35

ITEM	Factorial load (λ)			Commonalities (h2)			Item breakdown (a)
ITEM	Sample 1	Sample 2	Complete Sample	Sample 1	Sample 2	Complete Sample	Sample 1	Sample 2	Complete Sample
ITEM 1	0.76	0.64	0.72	0.58	0.41	0.52	1.17	0.83	1.04
ITEM 2	0.67	0.83	0.72	0.45	0.68	0.52	0.91	1.48	1.04
ITEM 3	0.67	0.68	0.70	0.45	0.47	0.49	0.91	0.94	0.99
ITEM 4	0.75	0.72	0.75	0.56	0.52	0.56	1.13	1.04	1.14
ITEM 5	0.68	0.72	0.68	0.46	0.52	0.46	0.92	1.04	0.92
ITEM 6	0.80	0.84	0.83	0.64	0.72	0.67	1.34	1.61	1.44

Indices	Sample 1	Sample 2	Complete Sample
Eigenvalue (r)*	2.70	2.72	2.70
Eigenvalue (cov)†	1.11	1.14	1.12
Factorial loads	0.55 to 0.60	0.51 to 0.67	0.53 to 0.64
R2‡	0.30 to 0.37	0.26 to 0.45	0.28 to 0.41
Residuals	-0.018 to 0.019	-0.033 to 0.051	-0.021 a 0.022
Standard error	0.029 a 0.036	0.019 a 0.030	0.021 a 0.026

	Index	Technique	Sample 1	Sample 2	Complete Sample
Exploratory	Adequacy of correlation matrix	Determinant of the matrix Bartlett	0.19	0.17	0.19
		Determinant of the matrix Bartlett	314.0 (df = 15)	342.8 (df = 15)	636.3 (df = 15)
		KMO (Kaiser-Meyer-Olkin)	0.82	0.82	0.84
	Explained Variance (Kaiser Criterion)		60.39%	62.68%	61.63%
	Explained Variance (AP)		69.92%	68.95%	71.23%
	Polychoric Correlation (rp = )		0.39 a 0.68	0.37 a 0.69	0.40 a 0.65
	Robust Mean-Scaled Chi Square (X2/df = 56)		20.19 (df = 9)*	22.69 (df = 9)*	22.54 (df = 9)*
Confirmatory	Non-Normed Fit Index (NNFI)		0.97	0.97	0.98
	Comparative Fit Index (CFI)		0.98	0.98	0.99
	Goodness of Fit Index (GFI)		0.99	0.98	0.99
	Adjusted Goodness of Fit Index (AGFI)		0.98	0.97	0.99
	Root Mean Square Error of Approximation (RMSEA)		0.08	0.08	0.06
Reliability	Root Mean Square of Residuals (RMSR)		0.05	0.08	0.05
	Standardized Cronbach's Alpha		0.86	0.87	0.87
	McDonald's Omega		0.86	0.88	0.87
	Construct Reliability - Index G H (Latente e observada)		(0.87; 0.78)	(0.89; 0.77)	(0.88; 0.79)
Unidimensionality	Unidimensional Congruence (UNICO)		0.98	0.98	0.99
	Explained Common Variance (ECV)		0.86	0.87	0.89
	Mean of item residual absolute loading (MIREAL)		0.24	0.29	0.23
Quality and effectiveness	Factor Determinacy Index (FDI)		0.93	0.94	0.88
	EAP Marginal Reliability		0.87	0.89	0.93
	Sensivity Ratio (SR)		2.64	2.92	2.72
	Expected percentage of true differences (EPTD)		91.4%	92.3%	91.6%

[TFN1] ^*
UNICO = Unidimensional Congruence;

[TFN2] ^†
ECV = Explained Common Variance;

[TFN3] ^‡
MIREAL = Mean of item residual absolute loadings