Diagnosis and Treatment of Collinearity Problems and Variable Selection in Least-Squares Models

$28.00 plus tax (Refund Policy)

Buy Article:

Abstract:

Collinearity problems may occur in regression models when independent variables are correlated. Collinearity results in regression coefficients with round off errors, unstable estimates, incorrect signs, and inflated variances. Condition indices and variance decomposition proportions quantitatively measure the severity of the problem and should be calculated for all multiple regressions. Principal component and ridge regressions treat collinearity. Procedures for selecting the optimum regress or variables and determining their interrelationships help alleviate collinearity and other problems associated with regression.

Document Type: Research Article

Publication date: October 1, 1988

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
  • Editorial Board
  • Submit a Paper
  • Subscribe to this Title
  • Information for Advertisers
  • Visit this journal's homepage
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more