Back to Search
Start Over
Statistical notes for clinical researchers: Sample size calculation 1. comparison of two independent sample means
- Source :
- Restorative Dentistry & Endodontics, Restorative Dentistry & Endodontics, Vol 41, Iss 1, Pp 74-78 (2016)
- Publication Year :
- 2016
-
Abstract
- Asking advice about sample size calculation is one of frequent requests from clinical researchers to statisticians. Sample size calculation is essential to obtain the results as the researcher expects as well as to interpret the statistical results as reasonable one. Usually insignificant results from studies with too small sample size may be subjects to suspicion about false negative, and also significant ones from those with too large sample size may be subjects to suspicion about false positive. In this article, the principles in sample size calculation will be introduced and practically some examples will be displayed using a free software, G*Power.1
- Subjects :
- Computer science
Small sample
Sample (statistics)
030206 dentistry
General Medicine
computer.software_genre
Insensitivity to sample size
Large sample
lcsh:RK1-715
Open Lecture on Statistics
03 medical and health sciences
0302 clinical medicine
Sample size determination
lcsh:Dentistry
030220 oncology & carcinogenesis
Statistics
Data mining
computer
Subjects
Details
- ISSN :
- 22347658
- Volume :
- 41
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Restorative dentistryendodontics
- Accession number :
- edsair.doi.dedup.....b4b77baefbd99332c3d0085b653df278