The effects of computer-based multimedia lecture presentations on community college microbiology students' achievement, attitudes and retention DISSERTATION
D'Maris Anne Lumpkin Allen, The University of Texas at Austin, United States
The University of Texas at Austin . Awarded
The purpose of the study was to determine whether computer-based multimedia lecture presentations can affect community college microbiology students' achievement, attitudes toward learning microbiology, and retention when compared with traditional lectures. This quasi-experimental study was conducted at a large, southern community college over an entire 16 week semester. Participants in the study (N = 76) were students enrolled in selected sections of an "Introduction to Microbiology" course, designed as a prerequisite for allied health science programs.
Student achievement was measured by comparing pretest/posttest scores on a Microbiology Concepts Questionnaire with ANCOVA and by comparing successful course grades between the control and experimental groups with ANOVA. Neither measure provided statistically significant differences in students' achievement. Student attitudes toward learning microbiology were measured using a Likert-type questionnaire administered in a pretest/posttest design. Students in the computer-based multimedia lecture presentations group showed significantly more positive attitudes toward learning microbiology than did students in the traditional lecture group when compared with ANCOVA. Student retention was measured by comparing the number of students earning a final grade for the course with those attempting the course in both the control and experimental groups. No significant difference in student retention was found with ANOVA. Student attitudes toward the multimedia lecture presentations were measured in a posttest only format using a Presentation Questionnaire and qualitative data were collected during the semester. Student responses showed positive attitudes toward the multimedia presentations. These findings indicate that incorporating multimedia lecture presentations into the microbiology classroom contributes to improved student satisfaction, as shown by significantly more positive attitudes toward learning microbiology with the computer-based multimedia lecture presentations when compared with traditional lectures.
Allen, D.A.L. The effects of computer-based multimedia lecture presentations on community college microbiology students' achievement, attitudes and retention. Ph.D. thesis, The University of Texas at Austin. Retrieved March 23, 2018 from https://www.learntechlib.org/p/123466/.
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