Does Statistical Power Affect a Study’s Results? How Many Sample Size? Cover Image

İstatistiksel Güç Bir Araştırmanın Sonuçlarına Etki Eder Mi? Örneklem Büyüklüğüne Nasıl Karar Verilmeli?
Does Statistical Power Affect a Study’s Results? How Many Sample Size?

Author(s): Burak Keskin
Subject(s): Methodology and research technology
Published by: Celal Bayar Üniversitesi Sosyal Bilimler Enstitüsü
Keywords: Statistical Power; Statistical Power Analysis; Effect Size;

Summary/Abstract: The statistical power analysis is a method that enables to plan a highly valid and reliable research and to guarantee the validity, reliability and sensibility of the results of a research. Statistical power is an approach which is used to evaluate to what degree the decisions obtained as a result of statistical tests used to test an aim are valid and reliable in terms of probability values. Various statistical analyses begin the analysis with the existing data and focus on the comments of the consequences. Nevertheless, power analysis is meaningful before data collection and significant in the process of setting the hypothesis. In this context, the major purposes of this study are; to contribute researches in social sciences by creating awareness about what the power analysis means and to guide researchers about how the power analyses can be employed in a social science study.

  • Issue Year: 18/2020
  • Issue No: Sp. Issue
  • Page Range: 157-174
  • Page Count: 18
  • Language: Turkish