1 - 4 of 4 results for "Robert F. Devellis"

Title: Scale Development: Theory and Applications / Edition 4, Author: Robert F. DeVellis Read an excerpt of this book!
Title: Scale Development: Theory and Applications / Edition 3, Author: Robert F. DeVellis Read an excerpt of this book!
Title: Scale Development: Theory and Applications / Edition 2, Author: Robert F. DeVellis
Title: Scale Development: Theory and Applications / Edition 1, Author: Robert F. DeVellis