Education Commons^™

More Bang For Your Buck: Bolstering Learning Via Refutation Text With Refutation-Based Elaborated Feedback, Jacqueline R. Cordova

UNLV Theses, Dissertations, Professional Papers, and Capstones

The current study examines the effects of refutation text and refutation-based elaborated feedback on conceptual understanding, self-efficacy, interest, beliefs, attitudes, and knowledge, within the context of learning about climate change. The study also tests whether elaborated feedback moderates the refutation text effect through an interaction. One hundred and fifty nine undergraduate students were recruited to participate in this study, which was administered via computer. They completed measures of their self-efficacy and interest in learning about climate change, as well as climate change beliefs, attitudes, and knowledge. Approximately half of the participants read a refutation text and half read a comparison …

Effects Of Explicit-Reflective Instruction On Preservice And Novice Teachers’ Epistemic And Conceptual Change Mediated By Reasoning, Danny Murphy

UNLV Theses, Dissertations, Professional Papers, and Capstones

Teachers’ beliefs shape their daily instruction and the materials presented to students. The personal views of educators are especially relevant when socioscientific issues are involved. Preservice and novice teachers’ mastery of the nature of science (NOS) and personal beliefs in and out of the classroom influence their worldviews and classroom practices. Although research has been conducted regarding conceptual change and epistemic change, it is not understood how conceptual change and epistemic change affect instructional practice. The purpose of the mixed methods explanatory sequential study was to determine how students in a science methods classroom think and reason with explicit and …

Students' Conceptions About Climate Change: Using Critical Evaluation To Influence Plausibility Reappraisals And Knowledge Reconstruction, Doug Lombardi

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Intergovernmental Panel on Climate Change (2007) reported a greater than 90% chance that human activities are responsible for global temperature increases over the last 50 years, as well as other climatic changes. The scientific report also states that alternative explanations (e.g., increasing energy received from the Sun) are less plausible than human-induced climate change. These climate scientists have made their plausibility judgment--which I define as the relative potential truthfulness of alternative explanations--based on the evaluation and coordination of multiple lines evidence with competing theoretical perspectives.

Climate change is a highly relevant and gravely serious topic; in an educational setting, …