Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 2,116

The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.

FORWARD SELECTION OF EXPLANATORY VARIABLES

Blanchet, F. Guillaume, Legendre, Pierre, Borcard, Daniel·2008·Ecology

Abstract

This paper proposes a new way of using forward selection of explanatory variables in regression or canonical redundancy analysis. The classical forward selection method presents two problems: a highly inflated Type I error and an overestimation of the amount of explained variance. Correcting these problems will greatly improve the performance of this very useful method in ecological modeling. To prevent the first problem, we propose a two‐step procedure. First, a global test using all explanatory variables is carried out. If, and only if, the global test is significant, one can proceed with forward selection. To prevent overestimation of the explained variance, the forward selection has to be carried out with two stopping criteria: (1) the usual alpha significance level and (2) the adjusted coefficient of multiple determination ( ) calculated using all explanatory variables. When forward selection identifies a variable that brings one or the other criterion over the fixed threshold, that variable is rejected, and the procedure is stopped. This improved method is validated by simulations involving univariate and multivariate response data. An ecological example is presented using data from the Bryce Canyon National Park, Utah, USA.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1890/07-0986.1

Cites

35 of 35 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 35 references

Research works printed but not linked: 13

  1. Bonferroni C. E., 1935, Studi in onore del Professore Salvatore Ortu Carboni, 13
  2. 10.2307/1267954 · doi:10.2307/1267954
  3. 10.1007/s11258-004-1956-2 · doi:10.1007/s11258-004-1956-2
  4. Ezekiel M., 1930, Method of correlation analysis
  5. 10.2307/3545216 · doi:10.2307/3545216
  6. Legendre P., 1998, Numerical ecology
  7. 10.2307/1268382 · DOI
  8. Roberts D. W., 1988, Plant community distribution and dynamics in Bryce Canyon National Park, 10.13001/uwnpsrc.1988.2693 · doi:10.13001/uwnpsrc.1988.2693
  9. 10.2307/2283989 · DOI
  10. 10.1016/j.quascirev.2005.05.001 · doi:10.1016/j.quascirev.2005.05.001
  11. Westfall P. H., 1998, Forward selection error control in the analysis of supersaturated designs, Statistica Sinica, 8, 101
  12. 10.1037/0033-2909.86.1.168 · doi:10.1037/0033-2909.86.1.168
  13. 10.2307/1268227 · doi:10.2307/1268227

Cited by

See all 2,116

Metadata

Authors
Blanchet, F. G., Legendre, P., & Borcard, D.
Venue
Ecology
Publisher
Wiley
Published
2008-09
Volume
89
Issue
9
Pages
2623-2632
ISSN
  • 0012-9658 (ISSN-L)
  • 1939-9170
OpenAlex
W1988619277
Cited by
2,116
References
35
FWCI
28.25
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: FORWARD SELECTION OF EXPLANATORY VARIABLES. https://app.cochat.ai/papers/10.1890/07-0986.1
The paper
Blanchet, F. G., Legendre, P., & Borcard, D. (2008). FORWARD SELECTION OF EXPLANATORY VARIABLES. Ecology. https://doi.org/10.1890/07-0986.1

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.