Details

Autor(en) / Beteiligte

• Kim, Tae Kyun

Titel

Understanding one-way ANOVA using conceptual figures

Ist Teil von

• Korean Journal of Anesthesiology, 2017, 70(1), , pp.22-26

Ort / Verlag

Korea (South): The Korean Society of Anesthesiologists

Erscheinungsjahr

2017

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Analysis of variance (ANOVA) is one of the most frequently used statistical methods in medical research. The need for ANOVA arises from the error of alpha level inflation, which increases Type 1 error probability (false positive) and is caused by multiple comparisons. ANOVA uses the statistic F, which is the ratio of between and within group variances. The main interest of analysis is focused on the differences of group means; however, ANOVA focuses on the difference of variances. The illustrated figures would serve as a suitable guide to understand how ANOVA determines the mean difference problems by using between and within group variance differences.