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      Normality Tests for Statistical Analysis: A Guide for Non-Statisticians

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      1 , 1 , *
      International Journal of Endocrinology and Metabolism
      Kowsar
      Normality, Statistical Analysis

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          Abstract

          Statistical errors are common in scientific literature and about 50% of the published articles have at least one error. The assumption of normality needs to be checked for many statistical procedures, namely parametric tests, because their validity depends on it. The aim of this commentary is to overview checking for normality in statistical analysis using SPSS.

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          Testing For Normality

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            Statistics notes: the normal distribution.

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              Detecting skewness from summary information.

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                Author and article information

                Journal
                Int J Endocrinol Metab
                Int J Endocrinol Metab
                10.5812/ijem
                Kowsar
                International Journal of Endocrinology and Metabolism
                Kowsar
                1726-913X
                1726-9148
                20 April 2012
                Spring 2012
                : 10
                : 2
                : 486-489
                Affiliations
                [1 ]Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
                Author notes
                [* ]Corresponding author: Saleh Zahediasl, Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, P.O. Box: 19395-4763, Tehran, IR Iran. Tel.: +98-2122409309, Fax: +98-2122402463, E-mail: zahedi@ 123456endocrine.ac.ir .
                Article
                10.5812/ijem.3505
                3693611
                23843808
                7b8e5346-bfc2-4f57-9e87-8f84eb6562fa
                Copyright © 2012, Research Institute For Endocrine Sciences and Iran Endocrine Society

                This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 28 January 2012
                : 21 November 2011
                : 21 January 2012
                Categories
                Statistical Comment

                normality,statistical analysis
                normality, statistical analysis

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