How to calculate sample size and why.
How to calculate sample size and why.
Clin Orthop Surg. 2013 Sep;5(3):235-42
Authors: Kim J, Seo BS
Abstract
WHY: Calculating the sample size is essential to reduce the cost of a study and to prove the hypothesis effectively.
HOW: Referring to pilot studies and previous research studies, we can choose a proper hypothesis and simplify the studies by using a website or Microsoft Excel sheet that contains formulas for calculating sample size in the beginning stage of the study.
MORE: There are numerous formulas for calculating the sample size for complicated statistics and studies, but most studies can use basic calculating methods for sample size calculation.
PMID: 24009911 [PubMed - indexed for MEDLINE]
Source: Clinics in Orthopedic Surgery - Category: Orthopaedics Tags: Clin Orthop Surg Source Type: research