PMID- 30157585 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201204 IS - 2005-6419 (Print) IS - 2005-7563 (Electronic) IS - 2005-6419 (Linking) VI - 71 IP - 5 DP - 2018 Oct TI - What is the proper way to apply the multiple comparison test? PG - 353-360 LID - 10.4097/kja.d.18.00242 [doi] AB - Multiple comparisons tests (MCTs) are performed several times on the mean of experimental conditions. When the null hypothesis is rejected in a validation, MCTs are performed when certain experimental conditions have a statistically significant mean difference or there is a specific aspect between the group means. A problem occurs if the error rate increases while multiple hypothesis tests are performed simultaneously. Consequently, in an MCT, it is necessary to control the error rate to an appropriate level. In this paper, we discuss how to test multiple hypotheses simultaneously while limiting type I error rate, which is caused by alpha inflation. To choose the appropriate test, we must maintain the balance between statistical power and type I error rate. If the test is too conservative, a type I error is not likely to occur. However, concurrently, the test may have insufficient power resulted in increased probability of type II error occurrence. Most researchers may hope to find the best way of adjusting the type I error rate to discriminate the real differences between observed data without wasting too much statistical power. It is expected that this paper will help researchers understand the differences between MCTs and apply them appropriately. FAU - Lee, Sangseok AU - Lee S AD - Department of Anesthesiology and Pain Medicine, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea. FAU - Lee, Dong Kyu AU - Lee DK AD - Department of Anesthesiology and Pain Medicine, Guro Hospital, Korea University School of Medicine, Seoul, Korea. LA - eng PT - Journal Article DEP - 20180828 PL - Korea (South) TA - Korean J Anesthesiol JT - Korean journal of anesthesiology JID - 101502451 EIN - Korean J Anesthesiol. 2020 Dec;73(6):572. PMID: 33271011 PMC - PMC6193594 OTO - NOTNLM OT - Alpha inflation OT - Analysis of variance OT - Bonferroni OT - Dunnett OT - Multiple comparison OT - Scheffe OT - Statistics EDAT- 2018/08/31 06:00 MHDA- 2018/08/31 06:01 PMCR- 2018/10/01 CRDT- 2018/08/30 06:00 PHST- 2018/08/19 00:00 [received] PHST- 2018/08/27 00:00 [accepted] PHST- 2018/08/31 06:00 [pubmed] PHST- 2018/08/31 06:01 [medline] PHST- 2018/08/30 06:00 [entrez] PHST- 2018/10/01 00:00 [pmc-release] AID - kja.d.18.00242 [pii] AID - kja-d-18-00242 [pii] AID - 10.4097/kja.d.18.00242 [doi] PST - ppublish SO - Korean J Anesthesiol. 2018 Oct;71(5):353-360. doi: 10.4097/kja.d.18.00242. Epub 2018 Aug 28.