Journal ArticleDOI
Assessing the importance of an independent variable in multiple regression: Is stepwise unwise?
J. Paul Leigh,J. Paul Leigh +1 more
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An example of the limitations of allocations of R2 method in stepwise regression is discussed and another interpretation of the results using the significance approach is suggested.About:
This article is published in Journal of Clinical Epidemiology.The article was published on 1988-01-01. It has received 74 citations till now. The article focuses on the topics: Multicollinearity & Regression analysis.read more
Citations
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Journal ArticleDOI
Predicting Disability in Stroke—A Critical Review of the Literature
TL;DR: This study supports the general opinion that not only are differences in objectives and heterogeneity in stroke patients responsible for the lack of accuracy in predicting functional outcome, but also the methodological flaws in published prognostic research.
Journal ArticleDOI
Restriction in activity associated with fear of falling among community-based seniors using home care services
Paula C. Fletcher,John P. Hirdes +1 more
TL;DR: Being female, having various impairments/limitations, lack of support and being a multiple faller significantly increased risk of fear of falling, whereas individuals that used antipsychotics and individuals that had Alzheimer's disease were less likely to report restricting their activity.
Journal ArticleDOI
On doing better science: From thrill of discovery to policy implications
TL;DR: It is argued that the main purpose of research is to discover and report on phenomena in a truthful manner, and where technical improvements are needed to enhance research quality is highlighted, and deeper reflection, transparency, and honesty are called on.
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Employee and job attributes as predictors of absenteeism in a national sample of workers: The importance of health and dangerous working conditions
J. Paul Leigh,J. Paul Leigh +1 more
TL;DR: Future research should direct attention toward workers' health and working conditions as covariates of absenteeism, since they are strongly significant in this study and have been neglected by most absenteeism investigators.
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Impact of diet on blood pressure and age-related changes in blood pressure in the US population: analysis of NHANES III.
TL;DR: A diet low in sodium, alcohol, and protein is associated with lower systolic blood and pulse pressure, whereas alcohol intake was associated with higher diastolic blood pressure and higher calcium and protein intakes.
References
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Book
Applied Regression Analysis and Other Multivariable Methods
TL;DR: In this article, the authors compare two straight line regression models and conclude that the Straight Line Regression Equation does not measure the strength of the Straight-line Relationship, but instead is a measure of the relationship between two straight lines.
Book
Causality and modern science
TL;DR: The causal problem has become topical once again. as discussed by the authors focuses on the ontological problem of causality, with specific emphasis on the place of the causal principle in modern science, and examines the two primary critiques of causal principle, the empiricist and the romantic, as a prelude to the detailed explanation of the actual assertions of causal determinism.
Journal ArticleDOI
Demographic, dietary, life style, and anthropometric correlates of blood pressure.
TL;DR: Age and body mass index played a major role in accounting for most of the variance in blood pressure, and select demographic, dietary, life-style, and anthropometric variables were examined for a specialized sample of 10,419 adults from the NHANES I conducted in 1971-1974.
Related Papers (5)
Backward, forward and stepwise automated subset selection algorithms: Frequency of obtaining authentic and noise variables
Shelley Derksen,H. J. Keselman +1 more