贝叶斯因子 [Bayes Factor]
定义: 在贝叶斯推断中用于模型选择的连续统计指标,它描述了一个模型相对于另一个模型的相对证据强度,无论模型本身是否正确。贝叶斯因子的取值范围从0到无穷大,反映了证据的相对强度,其中1为无证据的中性点。不同于p值,贝叶斯因子允许三种结论:(1)支持备择假设,(2)支持零假设,(3)两者都无足够证据支持。因此,贝叶斯因子常用BF10表示备择假设相对于零假设的证据,用BF01表示零假设相对于备择假设的证据。
相关术语: Bayesian inference, Bayesian statistics, Likelihood function, Null Hypothesis Significance Testing (NHST), *p*\-value
参考文献:
- Hoijtink, H., Mulder, J., van Lissa, C., & Gu, X. (2019). A tutorial on testing hypotheses using the Bayes factor. Psychological Methods, 24(5), 539–556. https://doi.org/10.1037/met0000201
- Makowski, D., Ben-Shachar, M. S., Chen, S. H. A., & Lüdecke, D. (2019). Indices of Effect Existence and Significance in the Bayesian Framework. https://doi.org/10.3389/fpsyg.2019.02767
原稿作者: Meng Liu
审阅者: Alaa AlDoh, Helena Hartmann, Connor Keating, Kai Krautter, Michele C. Lim, Suzanne L. K. Stewart, Ana Todorovic
翻译者: AI-driven translation tool "TransFlow" (developed by Jinbiao Yang and COSN OpenTransfer team)
译稿审阅者: Cathy Fang, Liangjie Chen, Ruoting Liu, Shuxian Jin