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	Ricerca confermativa bayesiana	Analisi della Potenza
Campo	Disegno della ricerca	Statistica
Famiglia	Process / pipeline	Hypothesis test
Anno di origine	1961 (Jeffreys); 2009–2018 (contemporary confirmatory formulation)	1969 (1st ed.); 1988 (seminal 2nd ed.)
Ideatore	Harold Jeffreys (theoretical foundation); Jeffrey Rouder, Eric-Jan Wagenmakers (applied confirmatory framework)	Jacob Cohen
Tipo	Quantitative hypothesis-testing framework	Sample size and power planning
Fonte seminale	Rouder, J. N., Speckman, P. L., Sun, D., Morey, R. D., & Iverson, G. (2009). Bayesian t tests for accepting and rejecting the null hypothesis. Psychonomic Bulletin & Review, 16(2), 225–237.	Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Lawrence Erlbaum Associates. ISBN: 978-0805802832
Alias	Bayesian hypothesis testing, confirmatory Bayesian analysis, Bayes factor hypothesis testing, BCR	sample size calculation, power calculation, sensitivity analysis, a priori power analysis
Correlati	1	5
Sintesi	Bayesian confirmatory research is a quantitative framework that tests pre-specified hypotheses by computing the Bayes factor — a ratio expressing how much more likely the observed data are under one hypothesis than another. Unlike classical null-hypothesis significance testing (NHST), it provides direct evidence for both the alternative and the null hypothesis, supports optional stopping rules under certain conditions, and updates prior beliefs with observed data through Bayes' theorem.	Power analysis is a planning and evaluation technique that quantifies the probability of detecting a real effect of a given magnitude at a chosen significance level. It links four quantities — sample size, effect size, significance level (alpha), and statistical power (1 minus beta) — so that researchers can determine the sample size needed before data collection or evaluate the sensitivity of a completed study.