Campus Access Only
All rights reserved. This publication is intended for use solely by faculty, students, and staff of University of the Pacific. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, now known or later developed, including but not limited to photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author or the publisher.
Date of Award
Dissertation - Pacific Access Restricted
Doctor of Education (Ed.D.)
Educational Administration and Leadership
First Committee Member
Second Committee Member
Third Committee Member
Cognitive biases have long been studied for their effects on an individual's decision-making. This study is the first of its kind to link these preferential thinking patterns to high school biology students' acceptance of evolution. At five urban high schools, 164 high school biology students were surveyed using a new instrument called the Cognitive Bias Assessment For Science Students – Evolution. The CBASS-E assesses both the level of non-acceptance of evolution, as well as how intensely participants demonstrate four specific cognitive biases. The four biases measured on the CBASS-E are anchoring, bandwagon effect, confirmation bias, and wishful thinking. This study showed that confirmation bias closely relates to a student's view of evolution. As part of this research, students were shown a video designed to teach high school students about cognitive bias and its effect on science learning. Results indicated that both cognitive bias and views on evolution are persistent, as student responses did not significantly change after watching the video. Included in this research are implications for teachers and administrators, as well as suggestions for further areas of study.
Eayrs, Ansel. (2014). The effect of cognitive bias video instruction on high school biology student acceptance of evolution: Implications for teachers and educational leaders. University of the Pacific, Dissertation - Pacific Access Restricted. http://scholarlycommons.pacific.edu/uop_etds/63
To access this thesis/dissertation you must have a valid pacific.edu email address and create an account for Scholarly Commons.Find in PacificSearch Find in ProQuest
If you are the author and would like to grant permission to make your work openly accessible, please email