How Many Subjects Does It Take To Do A Regression Analysis

Multivariate Behavioral Research
S B Green

Abstract

Numerous rules-of-thumb have been suggested for determining the minimum number of subjects required to conduct multiple regression analyses. These rules-of-thumb are evaluated by comparing their results against those based on power analyses for tests of hypotheses of multiple and partial correlations. The results did not support the use of rules-of-thumb that simply specify some constant (e.g., 100 subjects) as the minimum number of subjects or a minimum ratio of number of subjects (N) to number of predictors (m). Some support was obtained for a rule-of-thumb that N ≥ 50 + 8 m for the multiple correlation and N ≥104 + m for the partial correlation. However, the rule-of-thumb for the multiple correlation yields values too large for N when m ≥ 7, and both rules-of-thumb assume all studies have a medium-size relationship between criterion and predictors. Accordingly, a slightly more complex rule-of thumb is introduced that estimates minimum sample size as function of effect size as well as the number of predictors. It is argued that researchers should use methods to determine sample size that incorporate effect size.

Citations

Dec 8, 2011·Annals of General Psychiatry·Athanasios TselebisNikolaos Tzanakis
Sep 10, 2013·BMC Medical Research Methodology·Alexander M M AronsMarcel G M Olde Rikkert
Aug 30, 2006·Journal of Personality and Social Psychology·Eva Jonas, Peter Fischer
Aug 28, 2003·Health Psychology : Official Journal of the Division of Health Psychology, American Psychological Association·Kathleen A Martin GinisLise Gauvin
May 12, 2007·Psychological Medicine·Michael G T DowAileen Thomson
Oct 17, 2007·Annual Review of Psychology·Scott E MaxwellJoseph R Rausch
Jul 11, 2006·Journal of Clinical and Experimental Neuropsychology·R J StolwykJ L Bradshaw
Aug 17, 2010·Journal of Clinical and Experimental Neuropsychology·Robert M ChapmanLindsey A Reilly
Feb 25, 2011·Health Communication·Tanya R BerryAdrian Bauman
Jul 16, 2009·Journal of the International Neuropsychological Society : JINS·Solrun SigurdardottirAnne-Kristine Schanke
May 20, 2008·Cognitive Neuropsychiatry·Charles FernyhoughRichard P Bentall
Jan 10, 2012·Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition·C DonnellanD O'Neill
Aug 25, 2015·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Neha P Gothe, Edward McAuley
Feb 6, 2016·Epidemiology and Psychiatric Sciences·A W C PoonL Joubert
May 30, 2009·Journal of Gerontological Nursing·Elaine M Eshbaugh
Jan 20, 2005·Journal of Occupational Health Psychology·Miranda A G Peeters, Christel G Rutte
May 24, 2007·Journal of Evaluation in Clinical Practice·John L MoranJeffrey Martin
Oct 19, 2006·Journal of Nursing Scholarship : an Official Publication of Sigma Theta Tau International Honor Society of Nursing·Ruth Ohm, Lauren S Aaronson
May 11, 2011·Health and Quality of Life Outcomes·Christine J McPhersonCharles Leclerc
Sep 13, 2015·Women & Health·Kleanthi GourountiGrigorios Vaslamatzis
Sep 25, 2015·Behavioural and Cognitive Psychotherapy·Lisa Wood, Chris Irons
Apr 8, 2016·Multivariate Behavioral Research·Farid Tarrahi, Martin Eisend
Aug 28, 2014·Primary Health Care Research & Development·Sheri A Nsamenang, Jameson K Hirsch
Dec 21, 2014·Health and Quality of Life Outcomes·Maria Palmetun EkbäckKristofer Årestedt
Apr 17, 2015·BMC Neurology·Lisa MellonUNKNOWN ASPIRE-S study group
Mar 12, 2015·Aging & Mental Health·Margaret A Mullan, Karen A Sullivan
Sep 1, 2015·Behavioral Sleep Medicine·Kristoffer BotheliusMats Fredrikson

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.