Sample size estimation and statistical power analyses

Bhavna Prajapati, Mark C.M. Dunne, Richard A. Armstrong

Research output: Contribution to journalArticle

Abstract

The concept of sample size and statistical power estimation is now something that Optometrists that want to perform research, whether it be in practice or in an academic institution, cannot simply hide away from. Ethics committees, journal editors and grant awarding bodies are now increasingly requesting that all research be backed up with sample size and statistical power estimation in order to justify any study and its findings. This article presents a step-by-step guide of the process for determining sample sizeand statistical power. It builds on statistical concepts presented in earlier articles in Optometry Today by Richard Armstrong and Frank Eperjesi.
LanguageEnglish
JournalOptometry Today
Volume2010
Issue numberJuly
Publication statusPublished - 16 Jul 2010

Fingerprint

editor
moral philosophy

Keywords

  • sample size
  • statistical power
  • estimation

Cite this

Prajapati, B., Dunne, M. C. M., & Armstrong, R. A. (2010). Sample size estimation and statistical power analyses. Optometry Today, 2010(July).
Prajapati, Bhavna ; Dunne, Mark C.M. ; Armstrong, Richard A. / Sample size estimation and statistical power analyses. In: Optometry Today. 2010 ; Vol. 2010, No. July.
@article{4983e2b9aa314a32844c976f85172706,
title = "Sample size estimation and statistical power analyses",
abstract = "The concept of sample size and statistical power estimation is now something that Optometrists that want to perform research, whether it be in practice or in an academic institution, cannot simply hide away from. Ethics committees, journal editors and grant awarding bodies are now increasingly requesting that all research be backed up with sample size and statistical power estimation in order to justify any study and its findings. This article presents a step-by-step guide of the process for determining sample sizeand statistical power. It builds on statistical concepts presented in earlier articles in Optometry Today by Richard Armstrong and Frank Eperjesi.",
keywords = "sample size, statistical power, estimation",
author = "Bhavna Prajapati and Dunne, {Mark C.M.} and Armstrong, {Richard A.}",
year = "2010",
month = "7",
day = "16",
language = "English",
volume = "2010",
journal = "Optometry Today",
issn = "0268-5485",
number = "July",

}

Prajapati, B, Dunne, MCM & Armstrong, RA 2010, 'Sample size estimation and statistical power analyses' Optometry Today, vol. 2010, no. July.

Sample size estimation and statistical power analyses. / Prajapati, Bhavna; Dunne, Mark C.M.; Armstrong, Richard A.

In: Optometry Today, Vol. 2010, No. July, 16.07.2010.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Sample size estimation and statistical power analyses

AU - Prajapati, Bhavna

AU - Dunne, Mark C.M.

AU - Armstrong, Richard A.

PY - 2010/7/16

Y1 - 2010/7/16

N2 - The concept of sample size and statistical power estimation is now something that Optometrists that want to perform research, whether it be in practice or in an academic institution, cannot simply hide away from. Ethics committees, journal editors and grant awarding bodies are now increasingly requesting that all research be backed up with sample size and statistical power estimation in order to justify any study and its findings. This article presents a step-by-step guide of the process for determining sample sizeand statistical power. It builds on statistical concepts presented in earlier articles in Optometry Today by Richard Armstrong and Frank Eperjesi.

AB - The concept of sample size and statistical power estimation is now something that Optometrists that want to perform research, whether it be in practice or in an academic institution, cannot simply hide away from. Ethics committees, journal editors and grant awarding bodies are now increasingly requesting that all research be backed up with sample size and statistical power estimation in order to justify any study and its findings. This article presents a step-by-step guide of the process for determining sample sizeand statistical power. It builds on statistical concepts presented in earlier articles in Optometry Today by Richard Armstrong and Frank Eperjesi.

KW - sample size

KW - statistical power

KW - estimation

M3 - Article

VL - 2010

JO - Optometry Today

T2 - Optometry Today

JF - Optometry Today

SN - 0268-5485

IS - July

ER -

Prajapati B, Dunne MCM, Armstrong RA. Sample size estimation and statistical power analyses. Optometry Today. 2010 Jul 16;2010(July).