Сравнение на методи

	Сравнителен анализ по метода на Bland-Altman	Корелация на Пиърсън (Pearson Product-Moment Correlation)
Област	Статистика	Статистика
Семейство	Hypothesis test	Hypothesis test
Година на възникване	1986	1895
Създател	J. Martin Bland & Douglas G. Altman	Karl Pearson
Тип	Graphical and statistical method comparison	Parametric correlation
Основополагащ източник	Bland, J.M. & Altman, D.G. (1986). Statistical Methods for Assessing Agreement Between Two Methods of Clinical Measurement. Lancet, 327(8476), 307–310.	Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Lawrence Erlbaum Associates.
Други названия	Bland-Altman plot, limits of agreement analysis, method agreement analysis, Bland-Altman Uyum Analizi	pearson r, product-moment correlation, bivariate correlation, Pearson Korelasyon Analizi
Свързани	5	4
Резюме	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.	The Pearson product-moment correlation coefficient (r) is a parametric measure of the direction and strength of the linear association between two continuous variables. Introduced by Karl Pearson in 1895, it remains the most widely used bivariate correlation statistic in the social, health, and natural sciences. The coefficient ranges from −1 (perfect negative linear relationship) to +1 (perfect positive), with 0 indicating no linear association.