An introduction to everyday statistics--1
Open accessAbstract
Descriptive statistics are used to summarise numerical information so that it is in a more manageable form. There are a variety of ways of carrying this out depending upon what type of data we are dealing with. There is also a choice when presenting data. Graphical and tabular formats are possible but each have strengths and weaknesses. Selection therefore needs to take these into account along with the format of the presentation and the type of data.
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Parametric statistical procedures, including correlation, regression, t tests, and analysis of variance, are based on the assumption that the data or populations are normally distributed, and their validity depends on this assumption.
“The assumption of normality needs to be checked for many statistical procedures, namely parametric tests, because their validity depends on it.”
From Normality Tests for Statistical Analysis: A Guide for Non-Statisticians (2012) · cites this paper as [5]
The ‘Normal distribution’ section describes the shape of a normal distribution, and the ‘Skewed distribution’ section discusses transforming data to make further deductions possible. Neither states that parametric tests require a normality check or that their validity depends on normality; searches for those terms and for inferential statistics found no such passage. Page numbers were not available in our copy. (LLM, conf=0.72)
Experimental — accuracy not yet measuredThe assumption of normality needs to be checked for many statistical procedures, namely parametric tests.
“The assumption of normality needs to be checked for many statistical procedures, namely parametric tests, because their validity depends on it.”
From Normality Tests for Statistical Analysis: A Guide for Non-Statisticians (2012) · cites this paper as [5]
The ‘Normal distribution’ section describes the shape of a normal distribution, and the ‘Skewed distribution’ section discusses transforming skewed data. Neither section says that normality must be checked for parametric tests or that those tests’ validity depends on it. Searches for parametric tests and normality assumptions found no passage addressing that claim. (LLM, conf=0.72)
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Cites
Practical Statistics for Medical Research.
Walter, S., & Altman, D. G. (1992) · Biometrics · doi:10.2307/2532320 · Cited by 11,665 · see citing works
Practical Statistics for Medical Research
BROWN, G. W. (1992) · Archives of Pediatrics and Adolescent Medicine · doi:10.1001/archpedi.1992.02160180040013 · Cited by 451 · see citing works
Clinical Investigation and Statistics in Laboratory Medicine.
Roche, W. R. (2000) · Journal of Clinical Pathology · doi:10.1136/jcp.53.5.405-c · Cited by 95 · see citing works
Clinical Investigation and Statistics in Laboratory Medicine
Hooper, J. (1997) · Journal of the Royal Society of Medicine · doi:10.1177/014107689709001230 · Cited by 94 · see citing works
Statistics Notes: Presentation of numerical data
Altman, D. G., & Bland, J. M. (1996) · BMJ · doi:10.1136/bmj.312.7030.572 · Cited by 67 · see citing works
Introduction to biostatistics: Part 2, descriptive statistics
Gaddis, G., & Gaddis, M. L. (1990) · Annals of Emergency Medicine · doi:10.1016/s0196-0644(05)82052-9 · Cited by 52 · see citing works
Statistics notes Variables and parameters
Altman, D. G., & Bland, J. M. (1999) · BMJ · doi:10.1136/bmj.318.7199.1667 · Cited by 51 · see citing works
Nemenyi, P. (1977) · Holden-Day eBooks · Cited by 46 · see citing works
General Surgeons and the Advanced Trauma Life Support Course
Esposito, T. J., Kuby, A. M., Unfred, C., et al. (1995) · doi:10.1097/00005373-199511000-00018 · Cited by 19 · see citing works
Statistics in Clinical Practice
Coggon, D. (1995) · Cited by 18 · see citing works
Statistics in Clinical Practice
Johnson, T. L. (1995) · BMJ · doi:10.1136/bmj.311.7015.1311 · Cited by 17 · see citing works
Sedgwick, P. M. (2010) · BMJ · doi:10.1136/bmj.c1568 · Cited by 6 · see citing works
Haines, B., Haines, R., & May, A. (1996) · doi:10.1007/978-1-349-13850-0_15 · Cited by 5 · see citing works
Flagged first, then by citations
Research works printed but not linked: 3
- on August 1, 2023 by guest. Protected by copyright. http://emj.bmj.com/ J Accid Emerg Med: first published as 10.1136/emj.17.3.205-a on 1 May 2000. Downloaded from
- Altman D, Bland J. Presentation of numerical data. BMJ 1996;312:572.
- Bowlers D. Organising qualitative data. Statistics from scratch. Chichester: John Wiley,1996:37-64.
Cited by
Sorted by citations
Normality Tests for Statistical Analysis: A Guide for Non-Statisticians
Ghasemi, A., & Zahediasl, S. (2012) · International Journal of Endocrinology and Metabolism · doi:10.5812/ijem.3505 · Cited by 4,368 · see citing works
Haag, G., Diener, H.-C., May, A., Meyer, C., Morck, H., Straube, A., Wessely, P., & Evers, S. (2011) · The Journal of Headache and Pain · doi:10.1007/s10194-010-0266-4 · Cited by 78 · see citing works
- Authors
- Driscoll, P.
- Affiliations
- Salford Royal Hospital (GB)
- Corresponding author
- Driscoll, P
- Venue
- Emergency Medicine Journal
- Publisher
- BMJ
- Published
- 2000-05-01
- Volume
- 17
- Issue
- 3
- Pages
- 205-a-211
- ISSN
- 1351-0622 (ISSN-L)
- 1472-0205
- 1472-0213
- PMC
- PMC1725369
- OpenAlex
- W2988227159
- Cited by
- 30
- References
- 13
- Citations by year
- 2026: 1 · 2021: 4 · 2020: 4 · 2019: 2 · 2018: 1 · 2015: 2 · 2014: 4 · 2013: 1 · 2012: 1
- FWCI
- 2.66
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Emergency Medicine Journal (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Epidemiology
- Physical Sciences › Mathematics › Statistics and Probability › Probabilistic Statistics in Medicine
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Data Visualization and Analytics
- Keywords
- descriptive statistics, data summarization, graphical data presentation, data types, emergency medicine research
- MeSH terms
- Humans, Statistics as Topic
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