This study aims to assess the psychometric properties of the Brazilian version of the Vulnerable Elders Survey-13 (VES-13). Interviews were carried out with individuals aged 60 years and over receiving care at an ambulatory cancer centre. Test-retest reliability was assessed using the Spearman correlation coefficient, intraclass correlation coefficients and Cohen’s kappa coefficient. Construct ...

PURPOSE This article examines and illustrates the use and interpretation of the kappa statistic in musculoskeletal research. SUMMARY OF KEY POINTS The reliability of clinicians' ratings is an important consideration in areas such as diagnosis and the interpretation of examination findings. Often, these ratings lie on a nominal or an ordinal scale. For such data, the kappa coefficient is an ap...

6 A frequent criticism formulated against the use of weighted kappa coefficients is 7 that the weights are arbitrarily defined. We show that using linear weights for a K8 ordinal scale is equivalent to deriving a kappa coefficient from K-1 embedded 2× 2 9 tables. 10

OBJECTIVES We investigated the validity of the dipstick method (Mossman Associates Inc. USA) and the expired CO method to distinguish between smokers and nonsmokers. We also elucidated the related factors of the two methods. METHODS This study included 244 smokers and 50 ex-smokers, recruited from smoking cessation clinics at 4 local public health centers, who had quit for over 4 weeks. We ca...

The research was conducted to empirically validate the proposed maturity model of e-Government implementation, composed of four dimensions, further specified by 54 success factors as attributes. To do so, there are two steps were performed. First, expert’s judgment was conducted to test its content validity. The second, reliability study was performed to evaluate inter-rater agreement by using ...

purpose this preliminary study aimed to determine the intrarater reliability of the quantitative tests for the study of non-specific low back pain. methods test-retest reliability of the measurements of ratio data was determined by an intraclass correlation coefficient (icc), standard error of measurements (sems), coefficient of variation (cv), and one-way repeated measures anova using the valu...

The aim of this study was to measure the reliability of different nephelometric techniques for measuring C-reactive protein (CRP). One hundred and twenty samples were obtained from 40 patients. All 120 samples were divided in three parts to measure CRP using three different methods. Reliability was determined by the kappa index and intraclass correlation coefficient. The intraclass correlation ...

Pi (pi) and kappa (kappa) statistics are widely used in the areas of psychiatry and psychological testing to compute the extent of agreement between raters on nominally scaled data. It is a fact that these coefficients occasionally yield unexpected results in situations known as the paradoxes of kappa. This paper explores the origin of these limitations, and introduces an alternative and more s...