Cronbachs alpha reliability coefficient
In statistics, Cronbachs alpha coefficient is used as an estimate of the reliability of a psychometric test. It might have calculated either for each item in the scale or an average value for all items in the scale.
Selim Kılıc
doaj +2 more sources
A primer on the intraclass correlation coefficient as a measure of reliability in medical research [PDF]
The intraclass correlation coefficient (ICC) is a measure of reliability that is available in many forms, classified as one-way or two-way, random or mixed model, for single measures or as a mean of k measures, and as values for consistency or absolute ...
Chittaranjan Andrade
doaj +2 more sources
Exploring the Quality of Multiple-Choice Question Type of Test Items in Information and Communication Technology Using Item Analysis [PDF]
The study explored the quality of multiple-choice question types of test items in Information and Communication Technology (ICT) using item analysis. The study was an exploratory type where secondary data was collected and analysed.
David Arhin +3 more
doaj +1 more source
Improved smart contract electricity transaction model based on blockchain
The current electricity transaction process in the electricity market has problems such as high risk, time-consuming, and low efficiency. In order to solve such problems, an improved smart contract electricity transaction model based on blockchain is ...
SHI Quansheng +4 more
doaj +1 more source
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
doaj +1 more source
Reliability of reliability coefficients in the estimation of asymmetry [PDF]
AbstractAlthough promising to provide insight into the interaction between genotype and environment, investigations into fluctuating asymmetry suffer from a lack of standardization in the reporting of measurement error. In the present paper we show, using both anthropometric and odonto‐metric data, that the use of the reliability coefficient calculated
Fields, S. J. +3 more
openaire +3 more sources
دراسة إمکانية التنبؤ بمعاملات ثبات ألفا الرتبي وثيتا الرتبي وأوميجا وأکبر حد أدنى بمعلومية معامل ألفا لکرونباخ لأحجام عينات مختلفة Investigating the Possibility of Predicting Ordinal Alpha, Ordinal Theta, Omega, and the Greatest Lower Bound Reliability with Cronbach's Alpha Coefficient for Different Sample Sizes [PDF]
The current study aimed at investigating the possibility of predicting ordinal alpha, ordinal theta, omega, and the greatest lower bound reliability with Cronbach's alpha coefficient through verifying the correlative relationship between the alpha ...
أ.م.د/ محمد إبراهيم محمد
doaj +1 more source
RELIABILITY OF RESEARCH INSTRUMENTS IN MANAGEMENT SCIENCES RESEARCH: AN EXPOSITORY PERSPECTIVE [PDF]
The reliability of test scores is the extent to which they are consistent across different occasions of testing, different editions of the test, or different raters scoring the test taker’s responses.
Shodiya Olayinka Abideen +2 more
doaj
Bayesian Estimation of Single-Test Reliability Coefficients [PDF]
Popular measures of reliability for a single-test administration include coefficient α, coefficient λ2, the greatest lower bound (glb), and coefficient ω. First, we show how these measures can be easily estimated within a Bayesian framework. Specifically, the posterior distribution for these measures can be obtained through Gibbs sampling – for ...
Julius M. Pfadt +4 more
openaire +5 more sources
A Comparison of Reliability Coefficients for Ordinal Rating Scales [PDF]
AbstractKappa coefficients are commonly used for quantifying reliability on a categorical scale, whereas correlation coefficients are commonly applied to assess reliability on an interval scale. Both types of coefficients can be used to assess the reliability of ordinal rating scales. In this study, we compare seven reliability coefficients for ordinal
Alexandra de Raadt +3 more
openaire +2 more sources

