Validation of a questionnaire for the evaluation of informal social support for the elderly: section 2.

Abstract

Objective: The objective of the study was to carry out the factorial validation of the questionnaire for the evaluation of informal social support (ASI) for the elderly. Method: It is a descriptive, observational, quantitative type research. It was executed between August and December of 2016 in the municipality of Natal, Rio Grande do Norte and other locations in Brazil. In Inclusion criteria, were have age 60 or older and cognitive ability preserved. We performed Exploratory Factor Analysis (AFE). As criterion of exclusion of the items was adopted a reference value greater than or equal to 0.35 of factorial load and greater or equal to 0.5 of commonality per item. To determine the amount of retained factors, the criteria of own values>1, minimum cumulative explained variance of 60% and parallel Horn analysis were observed. Results: A sample of 259 elderly people from the five regions of Brazil was obtained. After AFE, 4 items were excluded due to the poverty of their factorial loads, remaining 20 items in 4 retained factors. Conclusion: The instrument has good psychometric properties, such as acceptable factor loads and excellent commonalities.

Construct elaboration and validity of the Pregnancy Depression Risk Scale

“…It is also worth mentioning that the choice of the number of dimensions or factors is a challenge, corroborated by other authors ( 37 - 38 ) , for which the balance between parsimony and information significance is sought, since the overestimation of the number of factors can lead to the production of an exaggerated number of constructs, due to the number of excessive and superfluous dimensions with little explanatory power. On the other hand, a very small number of dimensions can culminate in significant loss of information ( 37 - 38 ) .…”

Validade e acurácia do Guedes Tool para avaliar o apoio social informal para idosos

“…This was the first dimension presented in the instrument, and the score attributed to its items has a greater weight than the score of the items in the other dimensions. The justification for this greater weighting of items can be verified in a previous study of this instrument 13 .…”

“…The latent dimensions confirmed in the present study are the subject of discussions in scientific literature, and should therefore be justified in the present discussion, with a theoretical model provided for each one. Our decision to choose such domains is also based on previous studies regarding this instrument 12,13 .…”

“…For a country of continental size, with a population with a wide range of socio-cultural and economic aspects, studies in other locations are important. Previous steps in the development of this instrument have taken a broader approach, with respondents from the five regions of Brazil 13 .…”

“…Accuracy analysis is another decisive tool in the questionnaire validation process, as it defines parameters for diagnosis/prognosis and proposes more reliable reference measures to identify true cases or exclude false cases (sensitivity and specificity, for example), thus making the diagnostic assessment process more assertive 11 . Other steps in the validity process for this instrument have been previously developed, and have demonstrated good indicators of content validity and in the response process of the target population 12 , as well as internal validity of the factors and items chosen from the exploratory factor analysis 13 .…”