Journals / Acta Medica Alanya / 2025 / Cilt: 9 Sayı: 3

The Importance of Sample Size Calculation and Power Analysis in Research Studies

Araştırma Çalışmalarında Örneklem Büyüklüğü Hesaplamasının ve Güç Analizinin Önemi

Özkan Köse(SAĞLIK BİLİMLERİ ÜNİVERSİTESİ, ANTALYA SAĞLIK UYGULAMA VE ARAŞTIRMA MERKEZİ)0000-0002-7679-9635
Ahmet Aslan(Alanya Alaaddin Keykubat Üniversitesi, Tıp Fakültesi)0000-0001-5797-1287
Pages
162–164
Publication Date
2025-12-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this editorial, we aim to draw attention to sample size calculation and power analysis, outlining their conceptual foundations, practical implementation, and ethical implications in contemporary research.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Decisions about sample size and statistical power are often treated as a technical afterthought in research proposals, squeezed into a single sentence or delegated entirely to software.
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Key Findings & Data:Yet these decisions sit at the intersection of scientific validity, feasibility, and ethics and directly determine whether a study can answer its primary question in a trustworthy way.
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Conclusion & Impact:In this editorial, we aim to draw attention to sample size calculation and power analysis, outlining their conceptual foundations, practical implementation, and ethical implications in contemporary research.
🔬Design:Editoryal
📍Scope:Comprehensive Sample
⚙️Variables:Örneklem Büyüklüğü · Güç Analizi · Araştırma Çalışmaları

Abstract

Decisions about sample size and statistical power are often treated as a technical afterthought in research proposals, squeezed into a single sentence or delegated entirely to software. Yet these decisions sit at the intersection of scientific validity, feasibility, and ethics and directly determine whether a study can answer its primary question in a trustworthy way. Sample size calculation and power analysis should no longer be regarded as optional technicalities appended at the end of a protocol. They are central to scientific integrity, determining whether a study can credibly answer its research question, justify the burdens placed on participants, and make a meaningful contribution to the literature. In this editorial, we aim to draw attention to sample size calculation and power analysis, outlining their conceptual foundations, practical implementation, and ethical implications in contemporary research.

Özet

Araştırma önerilerinde örneklem büyüklüğü ve istatistiksel güç hakkındaki kararlar genellikle teknik bir sonradan düşünme unsuru olarak ele alınır, tek bir cümleye sıkıştırılır veya tamamen yazılıma devredilir. Oysa bu kararlar bilimsel geçerlilik, uygulanabilirlik ve etik konularının kesiştiği noktada yer alır ve bir çalışmanın temel sorusunu güvenilir bir şekilde yanıtlayıp yanıtlayamayacağını doğrudan belirler. Örneklem büyüklüğü hesaplaması ve güç analizi artık bir protokolün sonuna eklenen isteğe bağlı teknik ayrıntılar olarak görülmemelidir. Bunlar bilimsel bütünlüğün merkezinde yer alır ve bir çalışmanın araştırma sorusunu güvenilir bir şekilde yanıtlayıp yanıtlayamayacağını, katılımcılar üzerindeki yükleri haklı çıkarıp çıkaramayacağını ve literatüre anlamlı bir katkı sağlayıp sağlayamayacağını belirler. Bu editöryal yazıda, örneklem büyüklüğü hesaplaması ve güç analizine dikkat çekmeyi, kavramsal temellerini, pratik uygulamalarını ve çağdaş araştırmalardaki etik sonuçlarını özetlemeyi amaçlıyoruz.

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Cite This Article

Köse, Ö., Aslan, A. (2025). The Importance of Sample Size Calculation and Power Analysis in Research Studies. Acta Medica Alanya, Cilt: 9 Sayı: 3, 162–164. https://doi.org/10.30565/medalanya.1850488

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