Jump to ContentJump to Main Navigation
The New Statistics with RAn Introduction for Biologists$
Users without a subscription are not able to see the full content.

Andy Hector

Print publication date: 2015

Print ISBN-13: 9780198729051

Published to Oxford Scholarship Online: March 2015

DOI: 10.1093/acprof:oso/9780198729051.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 02 March 2021



(p.83) 6 Interactions
The New Statistics with R

Andy Hector

Oxford University Press

This chapter moves on from simple ‘one-way’ designs to more complex factorial designs. It extends the simple linear model to include interactions as well as average main effects. Interactions are assessed relative to a null additive expectation where the treatments have no effect on each other. Interactions can be positive when effects are more than additive or negative when they are less than expected. It considers in detail the analysis of an example data set concerning the mechanisms of loss of plant diversity following fertilizer treatment.

Keywords:   factorial designs, interactions, main effects, null expectation, additive predictions

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .