OBJECTIVE To translate into Arabic and validate the SF-36 quality of life index in a Tunisian Arabic population. BACKGROUND No validated Arabic quality of life index is published. DESIGN Arabic translation of the SF-36 scale was obtained by the "forward/backward translation" method. Adaptations were made after a pilot study involving 22 subjects from general population. Inter-rater reliabil...

For nearly 40 years, it has been asserted (see, e.g. Cronbach, 1958, 1992; Cronbach & Furby, 1970; Cronbach & Gleser, 1953; Edwards, 1994; Edwards & Cooper, 1990; Johns, 1981; Wall & Payne, 1973; Werts & Linn, 1970) that difference scores suffer from various methodological problems (about which more anon). In their position statement, Tisak and Smith argue that some of these problems have been ...

OBJECTIVE To carry out initial psychometric testing on the Simple Lifestyle Indicator Questionnaire (SLIQ). DESIGN Self-administered questionnaire to obtain data for test-retest reliability, for Cronbach alpha testing on completed questionnaires, and for blinded external validity testing. SETTING Kingston, Ont, and surrounding area. PARTICIPANTS One hundred thirty-six family practice pati...

OBJECTIVES The goal of the present study was to evaluate the reliability and validity of the Korean version of the tinnitus handicap questionnaire (THQ-K). METHODS A total of 60 patients were included in this study. Patients responded to the THQ-K, the tinnitus handicap inventory (THI), Beck's depression index (BDI), and the visual analogue scale (VAS) for loudness and pitch, loudness match, ...

OBJECTIVES To assess the reliability and validity of the Brazilian version of the Attentional Function Index. METHOD Methodological study. The sample was made up of 138 students from an undergraduate nursing course. The psychometric properties were assessed through the convergent construct validity, using the Brazilian version of the Attentional Function Index and the Portuguese-language vers...

OBJECTIVE To assess the reliability of the Kids' Activity and Nutrition Questionnaire (KAN-Q) as part of a tiered process for developing Supplemental Nutrition Assistance Program-Education tools. METHODS The KAN-Q was administered at 2 time points to assess internal consistency using standardized values of Cronbach α and test-retest reliability using the intraclass correlation coefficient for...

OBJECTIVE to construct an instrument for the assessment of graduates of undergraduate nursing courses and to validate this instrument through the consensus of specialists. METHOD methodological study. In order to elaborate the instrument, documental analysis and a literature review were undertaken. Validation took place through use of the Delphi Conference, between September 2012 and Septembe...

The purpose of this study is to develop a scale that reveals factors adversely affecting the university preparatory class students’ motivation for the English language and English language classes. The sample included 454 student participants. The researchers used a 6-point Likert-type scale with 50 items to collect the research data. The results of the exploratory factor analysis indicated tha...

On the basis of an empirical study of measures of constructs from the cognitive domain, the personality domain, and the domain of affective traits, the authors of this study examine the implications of transient measurement error for the measurement of frequently studied individual differences variables. The authors clarify relevant reliability concepts as they relate to transient error and pre...

Fifty years ago, L. J. Cronbach and P. E. Meehl (1955) advocated for the concept of construct validity, noting that psychologists study hypothetical, inferred entities and that validating measures of such entities involves basic theory testing. Three important developments in clinical assessment following that seminal article are noteworthy. First, clinical research has benefited from greater t...