2020-12-162020-12-16196612356628https://hdl.handle.net/10657/7164This study was designed to investigate the parameters involved in a declined runway situation. The subjects were eighteen female and twelve male Holtzman rats. The procedure involved varying factorially the decline of a runway during extinction as a function of the acquisition training. The declines used were 45°, 15°, and 0°. The results of the acquisition process show that there is a significant difference between the various decline levels. The results of the extinction phase show that there is no significant difference among the factorially varied decline conditions as a function of acquisition training.application/pdfenThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. §107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.Learning in animalsRats--BehaviorThesisreformatted digital