The Effect of Visual Variability on the Learning of Academic Concepts.

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Bibliographic Details
Title: The Effect of Visual Variability on the Learning of Academic Concepts.
Authors: Bourgoyne, Ashley1 (AUTHOR), Alt, Mary1 (AUTHOR) malt@email.arizona.edu
Source: Journal of Speech, Language & Hearing Research. Jun2017, Vol. 60 Issue 6, p1568-1576. 9p. 2 Color Photographs, 3 Diagrams, 1 Chart, 2 Graphs.
Subject Terms: *Visual learning, *Concept learning research, *Higher education of people with learning disabilities, *Language disorders, *Academic achievement, *Education of students with disabilities, *Higher education, *Biology education in universities & colleges, *Students, *Alternative education, *College students, *Comparative studies, *Statistical correlation, *Visual perception, *Data analysis, *Pre-tests & post-tests, Computers in higher education, Patients, Analysis of variance, Biology, Probability theory, Questionnaires, Research funding, Statistics, Mathematical variables, Repeated measures design
Geographic Terms: Arizona, United States
Abstract: Purpose: The purpose of this study was to identify effects of variability of visual input on development of conceptual representations of academic concepts for college-age students with normal language (NL) and those with language-learning disabilities (LLD). Method: Students with NL (n = 11) and LLD (n = 11) participated in a computer-based training for introductory biology course concepts. Participants were trained on half the concepts under a low-variability condition and half under a high-variability condition. Participants completed a posttest in which they were asked to identify and rate the accuracy of novel and trained visual representations of the concepts. We performed separate repeated measures analyses of variance to examine the accuracy of identification and ratings. Results: Participants were equally accurate on trained and novel items in the high-variability condition, but were less accurate on novel items only in the low-variability condition. The LLD group showed the same pattern as the NL group; they were just less accurate. Conclusions: Results indicated that high-variability visual input may facilitate the acquisition of academic concepts in college students with NL and LLD. High-variability visual input may be especially beneficial for generalization to novel representations of concepts. Implicit learning methods may be harnessed by college courses to provide students with basic conceptual knowledge when they are entering courses or beginning new units. [ABSTRACT FROM AUTHOR]
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Database: Education Research Complete
Description
Abstract:Purpose: The purpose of this study was to identify effects of variability of visual input on development of conceptual representations of academic concepts for college-age students with normal language (NL) and those with language-learning disabilities (LLD). Method: Students with NL (n = 11) and LLD (n = 11) participated in a computer-based training for introductory biology course concepts. Participants were trained on half the concepts under a low-variability condition and half under a high-variability condition. Participants completed a posttest in which they were asked to identify and rate the accuracy of novel and trained visual representations of the concepts. We performed separate repeated measures analyses of variance to examine the accuracy of identification and ratings. Results: Participants were equally accurate on trained and novel items in the high-variability condition, but were less accurate on novel items only in the low-variability condition. The LLD group showed the same pattern as the NL group; they were just less accurate. Conclusions: Results indicated that high-variability visual input may facilitate the acquisition of academic concepts in college students with NL and LLD. High-variability visual input may be especially beneficial for generalization to novel representations of concepts. Implicit learning methods may be harnessed by college courses to provide students with basic conceptual knowledge when they are entering courses or beginning new units. [ABSTRACT FROM AUTHOR]
ISSN:10924388
DOI:10.1044/2017_JSLHR-L-16-0271