The present study investigated the effectiveness of telepsychology administered cognitive behavioral therapy to treat anxiety and depression among college age individuals. Specifically, the study investigated effect sizes of telepsychology administered CBT for treating symptoms of depression and anxiety among college-aged adults with depression and/or anxiety diagnoses. Additionally, the study investigated if there was a significant difference in effect sizes for treating depression symptoms between telepsychology administered CBT and traditional face-to-face CBT for college-aged adults with a primary diagnosis of depression as well as, if there was a significant difference in effect sizes for treating anxiety symptoms between the two methods of CBT treatment delivery for college-aged adults with a primary diagnosis of anxiety. The researcher utilized a retrospective causal comparative research design using 83 college-aged subjects that were gathered from pre-recorded, patient-centered data from a telepsychology company. The 83 subjects received telepsychology administered CBT to treat symptoms of anxiety and depression. The effect sizes from the treatment sample of the 83 subjects were compared to effect sizes identified from the current literature for clients receiving traditional face-to-face administered CBT. Results suggest that there is not a significant difference between the effectiveness of telepsychology administered CBT and traditional face-to-face administered CBT when treating symptoms of anxiety and depression among college-aged adults with diagnoses of either anxiety or depression. Given the lack of research investigating the effectiveness of telepsychology administered CBT to treat symptoms of anxiety and depression among students, more research is needed to better understand the effectiveness of this treatment method for various school-age groups. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]