This case study investigated the phenomenon of the black white test score gap by seeking to determine if there was a difference in the academic performance of African American students and their White peers. The determination of student academic performance was made using scores from second semester Algebra II classes at two high schools in the Tucson Unified School District. The data covered three academic years and was analyzed via SPSS (independent samples t-test, ANOVA, and a pairwise analysis) and content analysis for qualitative analysis. Findings revealed that there was no variance in the scores of African Americans and their White peers attending an affluent school; however African Americans attending a low-income school scored lower than all groups that were compared in this study.

This dissertation seeks to determine the differences between veteran and non-veteran students' mental effort and task difficulty within undergraduate online courses in Bachelor of Applied Arts and Sciences (BAAS) programs at three public Texas universities. The BAAS program is geared toward non-traditional students, which includes veterans. The courses are delivered in flexible formats, including online courses, face-to-face courses, and blended courses, which use a combination of online and face-to-face courses. After reviewing literature and utilizing both the cognitive theory of multimedia learning and the cognitive learning theory, a survey was conducted using undergraduate students enrolled in BAAS programs at three public Texas universities. The data was analyzed by conducting a factorial ANOVA and Pearson correlation to determine if there was a difference between veterans and non-veteran students' mental effort and task difficulty within online courses within the BAAS programs. The results indicated that that all three hypotheses failed to reject the null hypotheses that: (1) there is no difference in mental effort of students who had military service, versus those who did not have military service, (2) there is no difference in mental effort of students who had military service, versus those who did not have military service, and (3) …