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| Analiza porównania metod Bland-Altmana× | Alfa Cronbacha (Analiza Rzetelności)× | |
|---|---|---|
| Dziedzina | Statystyka | Statystyka |
| Rodzina≠ | Hypothesis test | Latent structure |
| Rok powstania≠ | 1986 | 1951 |
| Twórca≠ | J. Martin Bland & Douglas G. Altman | Lee J. Cronbach |
| Typ≠ | Graphical and statistical method comparison | Reliability / internal consistency coefficient |
| Źródło pierwotne≠ | Bland, J.M. & Altman, D.G. (1986). Statistical Methods for Assessing Agreement Between Two Methods of Clinical Measurement. Lancet, 327(8476), 307–310. DOI ↗ | Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16(3), 297–334. DOI ↗ |
| Inne nazwy | Bland-Altman plot, limits of agreement analysis, method agreement analysis, Bland-Altman Uyum Analizi | coefficient alpha, alpha reliability, internal consistency reliability, Güvenilirlik Analizi (Cronbach Alpha) |
| Pokrewne≠ | 5 | 4 |
| Podsumowanie≠ | The Bland-Altman analysis is a graphical and statistical technique for assessing agreement between two measurement methods applied to the same subjects. Introduced by J. Martin Bland and Douglas G. Altman in their landmark 1986 Lancet paper, it plots the difference between the two methods against their mean for each subject, and derives the bias (mean difference) along with limits of agreement (LoA) that capture 95% of differences in the population. | Cronbach's alpha is a coefficient of internal consistency that quantifies the degree to which a set of items on a scale measures the same underlying construct. Introduced by Lee J. Cronbach in 1951, it remains the most widely reported reliability index in social-science, health, and educational research. |
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