A PRACTICAL ESTIMATION OF THE REQUIRED SAMPLE SIZE IN FMRI STUDIES

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Mugla Journal of Science and Technology
Volume:9 Issue:2
A PRACTICAL ESTIMATION OF THE REQUIRED SAMPLE SIZE IN FMRI STUDIES

A PRACTICAL ESTIMATION OF THE REQUIRED SAMPLE SIZE IN FMRI STUDIES

Authors : Cemre Candemir

Pages : 56-63

Doi:10.22531/muglajsci.1282492

View : 78 | Download : 46

Publication Date : 2023-12-31

Article Type : Research Paper

Abstract :In functional Magnetic Resonance Imaging (fMRI) studies, the variability in fMRI data, the complexity of the analysis, and the need to correct for multiple comparisons make determining the appropriate sample size challenging. Hence, power analysis becomes an important tool to use for determining the appropriate sample size needed to achieve reliable and statistically significant results. In this context, this study aims to represent the process of conducting a power analysis and estimating the sample size for an fMRI study. To do this, three functional, affective, behavioral, and cognitive, data sets having different experimental task designs are used. This study provides a step-by-step guide on how to conduct a power analysis and estimate the sample size for various fMRI studies.
Keywords : Deneysel ödev tasarımı, fMRI, katılımcı sayısı, güç analizi, örneklem büyüklüğü, istatistiksel anlamlılık

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