Journal
ANIMAL BEHAVIOUR
Volume 77, Issue 3, Pages 753-758Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.anbehav.2008.11.006
Keywords
adaptive hypothesis; ecological fallacy; hierarchical model; hypothesis testing; individual heterogeneity; multilevel data; random effect; reaction norm; repeated measure; within-group centering