Results 11 to 20 of about 350,704 (260)
Frontiers in Psychology, 2022 Critiques of coefficient alpha as an estimate of scale reliability are widespread in the literature. However, the continuous overuse of this statistic in mathematics education research suggests a disconnection between theory and practice.
Yusuf F. Zakariya
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Distortion Coefficients of the $$\alpha $$-Grushin Plane [PDF]
The Journal of Geometric Analysis, 2022 AbstractWe compute the distortion coefficients of the $$\alpha $$ α -Grushin plane. They are expressed in terms of generalised trigonometric functions. Estimates for the distortion coefficients are then obtained and a conjecture of a measure contraction property condition for the generalised Grushin planes is suggested.
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Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023 Background Pulmonary vascular distensibility associates with right ventricular function and clinical outcomes in patients with unexplained dyspnea and pulmonary hypertension.
Jordan Elliott +5 more
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Cronbach’s Alpha and Semantic Overlap Between Items: A Proposed Correction and Tests of Significance
Frontiers in Psychology, 2022 The purpose of the present study was to address the shortcomings of Cronbach’s alpha concerning the semantic overlap between items. Using an example from a motivational measure, the correction of Cronbach’s alpha was applied by partialing out the effects
Ghadah S. Alkhadim
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Coefficient Alpha and the Reliability of Composite Measurements [PDF]
Psychometrika, 1966 Following a general approach due to Guttman, coefficientα is rederived as a lower bound on the reliability of a test. A necessary and sufficient condition under which equality is attained in this inequality and hence that α is equal to the reliability of the test is derived and shown to be closely related to the recent redefinition of the concept of ...
M R, Novick, C, Lewis
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Coefficient alpha: Unnecessarily ambiguous; unduly ubiquitous
SA Journal of Industrial Psychology, 2006 By means of simple numerical examples it is demonstrated how the value of coefficient alpha is determined by the size and sign of the item intercorrelations, the dimensionality of the items, and the number of items. Relatively high alphas may be obtained
G K Huysamen
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A journey around alpha and omega to estimate internal consistency reliability
Anales de Psicologia, 2017 Based on recent psychometric developments, this paper presents a conceptual and practical guide for estimating internal consistency reliability of measures obtained as item sum or mean.
Carme Viladrich +2 more
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Coefficient estimates for alpha-spiral functions [PDF]
Bulletin of the Australian Mathematical Society, 1983 Letbelong to the class of α-spiral functions of order ρ(|α| < π/2, 0 ≤ ρ < 1). In this paper, we determine sharp coefficient estimates for functions of the formf(z)t, wheretis a positive integer. We also study the influence of the second coefficient on the other coefficients for such functions. The results obtained not only generalize the results
Bhatia, B. L., Rajasekaran, S.
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Don’t Forget the Model in Your Model-based Reliability Coefficients: A Reply to McNeish (2018)
Collabra: Psychology, 2019 McNeish (2018) advocates that researchers abandon coefficient alpha in favor of alternative reliability measures, such as the 1-factor reliability (coefficient omega), a total reliability coefficient based on an exploratory bifactor solution (“Revelle’s ...
Victoria Savalei, Steven P. Reise
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An R Function for Cronbach’s Alpha Analysis: A Case-Based Approach
National Journal of Community Medicine, 2022 Cronbach’s alpha is a very commonly used method in biomedical research. Cronbach’s alpha Indicates the extent to which the items in your questionnaire are related to each other, a useful coefficient for assessing the internal consistency of the items ...
Himani Kotian +2 more
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