Reliability and construct validity of the Online Cognition Scale in the Portuguese (Brazil) version (OCS-BR)

Silva, Hugo Rafael de Souza e; Areco, Kelsy Catherina Nema; Bandiera-Paiva, Paulo; Galvão, Pauliana Valéria Machado; Garcia, Analia Nusya de Medeiros; Silveira, Dartiu Xavier da

doi:10.1590/0047-2085000000146

Hugo Rafael de Souza e Silva

University of Pernambuco (UPE), Medicine College (Serra Talhada Campus, Mental Health and Primary Health Care Discipline, Practice Laboratory, Research and Evaluation in Mental Health.

Kelsy Catherina Nema Areco

Federal University of São Paulo (Unifesp), Health Informatics Department.

Paulo Bandiera-Paiva

Federal University of São Paulo (Unifesp), Health Informatics Department.

Pauliana Valéria Machado Galvão

Oswaldo Cruz Foundation (Fiocruz) Sergio Arouca Public Health National School (ENSP).

Analia Nusya de Medeiros Garcia

University of Pernambuco (UPE), Biologic Sciences Institute.

Dartiu Xavier da Silveira

Federal University of São Paulo (Unifesp), Psychiatry and Medical Psychology Department.

Address for correspondence: Pauliana Valéria Machado Galvão. Escola Nacional de Saúde Pública Sergio Arouca. Fundação Oswaldo Cruz. Rua Leopoldo Bulhões, 1480, Manguinhos. 21041-210 – Rio de Janeiro, RJ, Brasil. E-mails: mscpauliana@hotmail.com.br; cons.acad@outlook.com

INDIVIDUAL CONTRIBUTIONS

Hugo Rafael de Souza e Silva – Contributed to the conception, the design, analysis and interpretation of the data, writing of the article and final approval of the version to be published.

Kelsy Catherina Nema Areco – Contributed to the analysis and interpretation of the data, relevant critical review of the intellectual content and final approval of the version to be published.

Paulo Bandiera-Paiva – Contributed to the analysis and interpretation of the data, relevant critical review of the intellectual content and final approval of the version to be published.

Pauliana Valéria Machado Galvão – Contributed to the analysis and interpretation of the data, relevant critical review of the intellectual content and final approval of the version to be published.

Analia Nusya de Medeiros Garcia – Collaborated in the conception and design, relevant critical revision of the intellectual content and final approval of the version to be published.

Dartiu Xavier da Silveira – Contributes to the conception, design, analysis and interpretation of the data, writing of the article and final approval of the version to be published.

CONFLICTS OF INTEREST

The authors Hugo Rafael de Souza e Silva, Dartiu Xavier da Silveira, Kelsy Catherina Nema Areco, Paulo Bandiera-Paiva and Anália Nusya de Medeiros Garcia declare that there is no conflict of interest in relation to this article. The author Pauliana Valéria Machado Galvão declares receiving doctoral scholarship from the Coordination of Improvement of Higher Education Personnel (Capes/Ministry of Education), with a doctorate in Epidemiology of Public Health, Sérgio Arouca National School of Public Health, Oswaldo Cruz Foundation.

Variable	N	%
Gender
Male	88	24.5
Female	271	75.5
Marital status
Single	343	95.5
Married	5	1.4
Widower	3	0.8
Divorced	1	0.3
Stable union	7	1.9
Family income
Up to 3 minimum salaries	105	29.2
More than 3 and up to 10 MS	155	43.2
More than 10 and up to 20 MS	53	14.8
More than 20 and up to 30 MS	30	8.4
More than 30 MS	16	4.5
Internet access
Yes	359	100
No	0	0
Local access
Home	345	96.1
Work	45	12.5
University	242	67.4
Weekly connection time
Up to 10 hours	114	31.8
Between 10 and 20 hours	138	38.4
Between 20 and 30 hours	44	12.3
More than 40 hours	29	8
Use the internet to maintain personal relationships
Yes	153	42.6
No	206	57.4
Use the internet for entertainment
Yes	262	73
No	97	27
Use the internet to escape problems
Yes	152	42.3
No	207	57.7
The internet interferes with studies and employment
Yes	46	12.8
No	313	87.2
Lied about the amount of time you spend online
Yes	31	8.6
No	328	91.4
Total	359	100

Itens	Portuguese version	English version
5	Eu posso ser eu mesmo(a) online	I can be myself online
18	Eu nunca fico online por mais tempo do que eu havia planejado	I never stay on longer than I have planned
24	Poucas pessoas gostam de mim além daquelas que eu conheço online	Few people like me but the ones who I meet online

	Analysis 1*				Analysis 2

	CITC		PBC	CAID	CITC	PBC	CAID
Social comfort

	Cronbach α = 0.77				Cronbach α = 0.78

Item 1	0.525		0.580	0.752	0.529	0.620	0.376
Item 2	0.432		0.440	0.763	0.456	0.460	0.305
Item 3	0.374		0.390	0.768	0.370	0.410	0.211
Item 4	0.489		0.580	0.757	0.470	0.610	0.292
Item 5	0.281		0.530	0.783	***	***	***
Item 6	0.517		0.450	0.755	0.538	0.470	0.337
item 7	0.376		0.470	0.771	0.338	0.470	0.164
Item 8	0.312		0.320	0.773	0.311	0.330	0.200
Item 9	0.505		0.440	0.760	0.520	0.450	0.314
Item 10	0.503		0.450	0.758	0.503	0.450	0.290
Item 11	0.355		0.300	0.773	0.370	0.300	0.243
Item 12	0.418		0.440	0.764	0.431	0.460	0.232
Item 13	0.361		0.410	0.769	0.371	0.430	0.178

Impulse control decrease

	Cronbach α = 0.81				Cronbach α = 0.82

Item 14	0.545		0.610	0.796	0.549	0.640	0.805
Item 15	0.455		0.520	0.806	0.475	0.560	0.814
Item 16	0.652		0.690	0.782	0.629	0.710	0.795
Item 17	0.563		0.580	0.794	0.562	0.580	0.804
Item 18	0.293		0.510	0.826	***	***	***
Item 19	0.531		0.540	0.798	0.539	0.550	0.807
Item 20	0.300		0.340	0.818	0.315	0.350	0.828
Item 21	0.418		0.390	0.812	0.425	0.370	0.821
Item 22	0.646		0.630	0.783	0.650	0.630	0.792
Item 23	0.629		0.580	0.788	0.630	0.560	0.797

Loneliness/Depression

		Cronbach α = 0.73			Cronbach α = 0.75

Item 24		0.230	0.300	0.753	***	***	***
Item 25		0.529	0.630	0.684	0.515	00.63	0.710
Item 26		0.603	0.710	0.659	0.619	0.720	0.669
Item 27		0.578	0.750	0.669	0.590	0.760	0.682
Item 28		0.553	0.610	0.679	0.550	0.620	0.700
Item 29		0.347	0.490	0.737	0.334	0.500	0.771

Distraction

		Cronbach α = 0.77

Item 30		0.356	0.440	0.773
Item 31		0.421	0.730	0.763
Item 32		0.398	0.540	0.771
Item 33		0.484	0.510	0.751
Item 34		0.659	0.630	0.712
Item 35		0.543	0.580	0.738
Item 36		0.646	0.630	0.715

		Cronbach α of the instrument = 0.91			Cronbach α of the instrument = 0.91

Number of Items			Social comfort	Diminished impulse control	Loneliness/Depression	Distraction
Spearman’s rho	Social comfort	13	1.000	0.581**	0.571**	0.546**
	Diminished Impulse control	10	0.581**	1.000	0.689**	0.597^***
	Loneliness/Depression	6	0.571**	0.689**	1.000	0.549**
	Distraction	7	0.546**	0.597**	0.549**	1.000

[TFN1] * Applied in all instrument. ***Item withdrawn due to low-discriminant power. CITC: corrected item-total correlation; PBC: point biserial correlation; CAID: Cronbach’s alpha if item deleted.

Reliability and construct validity of the Online Cognition Scale in the Portuguese (Brazil) version (OCS-BR)

Confiabilidade e validade de construto da Online Cognition Scale da versão português (Brasil) (OCS-BR)

ABSTRACT