Date of Award

2018

Document Type

Dissertation

Selected Creative Commons License

Creative Commons Attribution-NonCommercial 4.0 International License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License

Degree Name

Doctor of Education (EdD)

Institution

Hofstra University

First Advisor

Dr. Bruce Torff, Chair of Dissertation Committee

Abstract

A study was conducted to investigate the extent to which previous science achievement affected student performance in traditional hands-on and virtual laboratory environments. A sample of 70 first-year college students was employed in a counterbalanced A-B-A-B experimental design. The study spanned four instructional weeks of laboratory experimentation alternating traditional and virtual learning environments. For each of the four labs, students were given a pre-test designed to measure content knowledge, administered the intervention of virtual labs, and this was followed by an identical post-test. Prior science achievement was assessed using a general chemistry assessment exam. T-tests revealed that student performance did not differ between the hands-on and virtual environments. Results of a MANOVA showed that virtual labs were more effective than hands-on labs for high-achieving students, whereas there was no difference for low-achieving students. Results of a second MANOVA revealed that high-achieving students outperformed low-achieving students on hands-on lab 3, virtual lab 3, and hands-on lab 4. Findings suggest that the use of virtual labs does not harm science achievement and may conserve resources, but may expand the gap between high- and low-achieving students in the science laboratory. A study was conducted to investigate the extent to which previous science achievement affected student performance in traditional hands-on and virtual laboratory environments. A sample of 70 first-year college students was employed in a counterbalanced A-B-A-B experimental design. The study spanned four instructional weeks of laboratory experimentation alternating traditional and virtual learning environments. For each of the four labs, students were given a pre-test designed to measure content knowledge, administered the intervention of virtual labs, and this was followed by an identical post-test. Prior science achievement was assessed using a general chemistry assessment exam. T-tests revealed that student performance did not differ between the hands-on and virtual environments. Results of a MANOVA showed that virtual labs were more effective than hands-on labs for high-achieving students, whereas there was no difference for low-achieving students. Results of a second MANOVA revealed that high-achieving students outperformed low-achieving students on hands-on lab 3, virtual lab 3, and hands-on lab 4. Findings suggest that the use of virtual labs does not harm science achievement and may conserve resources, but may expand the gap between high- and low-achieving students in the science laboratory.

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