This work is an Evidenced-Based Practice Paper. Peer support interventions have been shown to be successful in improving student performance and persistence in science, technology, engineering, and mathematical (STEM) disciplines in traditional classroom settings. Peer-led team learning (PLTL) is a peer support intervention where a peer leader facilitates active learning sessions with a small group of students to strengthen and provide additional clarity to specified topics and concepts in a course. Peer leaders are recruited from specific undergraduate courses where they have achieved success. The selected peer leaders participate in a 10-hour self-paced training program where they learn active learning techniques, communication strategies, and how to provide effective feedback. This research study conducted at a unique, private university recognized for offerings in aerospace and aviation-related degrees funded by the National Science Foundation (NSF) Improving Undergraduate STEM Education (IUSE) program seeks to examine the effectiveness of PLTL in an online asynchronous environment. The student population of this online campus comprises primarily of adult learners with most of them either military veterans or still serving in the military. This allows insights into the effectiveness of peer-led team learning with military and veteran students in an online learning environment. To date, the results of improving student performance in historically difficult engineering courses, such as statics, dynamics, digital circuit design, and aerodynamics, has been encouraging. This work explores the effectiveness of this approach with an increased number of course sections and peer leaders. It also begins to look at the effect on veteran persistence in pursing an engineering degree as the research enters its third year.
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