Internal Structure of Beck Hopelessness Scale: An Analysis of Method Effects Using the CT-C(M-1) Model.

ABTRACTThe construct validity in relation to the dimensionality or factor structure of the Beck Hopelessness Scale (BHS) has long been debated in psychometrics. Irrelevant variance due to item wording (method effects) can distort the factor structure, and recent studies have examined the method factor's role in the factor structure of the BHS. However, the models used to control the method effects have severe limitations, and new models are needed.

Validity of the Hospital Anxiety and Depression Scale (HADS) in primary care patients in Colombia.

Objective: To assess the validity of the Hospital Anxiety and Depression Scale (HADS) for depression and anxiety screening in primary care patients in Colombia.

Methods: A criterion validity study was conducted with 243 adults that had completed the HADS and were later assessed using the MINI as a gold standard. Cronbach's alpha, McDonald's omega and factor structure were applied through confirmatory factor analysis (CFA).

Sense of community in poverty contexts in Brazil, Colombia, and Mexico: A transcultural study.

The aim of this article is to analyze the sense of community of three communities in conditions of poverty in Brazil, Colombia and Mexico. The general sample was composed of 533 people: 124 from Bogotá (Colombia), 200 from Mérida (Mexico), and 209 from Porto Alegre (Brazil). The scale applied was the Sense of Community Index, performing variance analysis, and multivariate analysis of variance.

SOA-based model for value-added ITS services delivery.

Integration is currently a key factor in intelligent transportation systems (ITS), especially because of the ever increasing service demands originating from the ITS industry and ITS users. The current ITS landscape is made up of multiple technologies that are tightly coupled, and its interoperability is extremely low, which limits ITS services generation. Given this fact, novel information technologies (IT) based on the service-oriented architecture (SOA) paradigm have begun to introduce new ways to address this problem.