OBJECTIVE To compare the reliability and convergent validity of instruments assessing quality of life in Brazilian older adults. METHODS Cross-sectional study of 278 literate, community-dwelling older adults attending a municipal university for the elderly in Sao Carlos, SP, Southeastern Brazil between 2006 and 2008. The Brazilian versions of the SF-36 and WHOQOL-BREF instruments to assess qu...

The purpose of this prospective study was to perform the Brazilian Voice-Related Quality of Life (V-RQOL) version and to check its psychometric measurement properties and the relationship between vocal self-assessment and the instrument's scores. The translation and validation were performed following the guidelines of the Scientific Advisory Committee of Medical Outcomes Trust. The instrument ...

BACKGROUND Coordination within hospitals is a major attribute of medical care and influences quality of care. This study tested the validity of 3 indicators covering two key aspects of coordination: the transfer of written information between professionals (medical record content, radiology exam order) and the holding of multidisciplinary team meetings during treatment planning. METHODS The s...

BACKGROUND The Child Perceptions Questionnaire for children aged 11 to 14 years (CPQ11-14) is a 37-item measure of oral-health-related quality of life (OHRQoL) encompassing four domains: oral symptoms, functional limitations, emotional and social well-being. To facilitate its use in clinical settings and population-based health surveys, it was shortened to 16 and 8 items. Item impact and stepwi...

The internal consistency of the nine bipolar scales was estimated by split-half and analysis of variance techniques. Table IV presents the split-half reliability coefficients computed for a group of 1138 persons included in the norming group. There were 477 males and 661 females in the group. The average age was 32.6 with a standard deviation of 12.06 the male group and the female group were an...

The purpose of this study was to examine the reliability of the preliminary Spanish version of the Sport Imagery Questionnaire (SIQ). The SIQ was developed to examine five cognitive and motivational functions of imagery use. Participants were 81 athletes competing in soccer (n = 43) and roller skating (n = 38), ranging in age from 14 to 29 years (M = 18.10, SD = 3.16). Reliability was evaluated...

The paper concerns identification of the Wiener system consisting of a linear subsystem followed by a static nonlinearity f (·) with no invertibility and structure assumption. Recursive estimates are given for coefficients of the linear subsystem and for the value f (v) at any fixed v. The main contribution of the paper consists in establishing convergence with probability one of the proposed a...

• A common measure of tail dependence is the so-called tail-dependence coefficient. We present a nonparametric estimator of the tail-dependence coefficient and prove its strong consistency and asymptotic normality in the case of known marginal distribution functions. The finite-sample behavior as well as robustness will be assessed through simulation. Although it has a good performance, it is s...

The purpose of this study was to develop a valid, reliable scale to measure life skills. The first phase involved the conceptualization and operationalization of life skills based on the review and identifies the research gaps. Similar questionnaires, scales were reviewed, based on that the items were framed for the tool. In the second phase, Face and content validity were assessed by a panel o...

Gini index is a widely used measure of economic inequality. This article develops a theory and methodology for constructing a confidence interval for Gini index with a specified confidence coefficient and a specified width without assuming any specific distribution of the data. Fixed sample size methods cannot simultaneously achieve both specified confidence coefficient and fixed width. We deve...