This dissertation investigates an overarching research question: how can recognition-type incentives, such as gamification and peer gifting, motivate users' knowledge seeking and contributions in e-learning and online Q&A (question and answer) communities? To address this question, I conducted three studies. In Chapter 2, I examine how social…

Through a non-experimental descriptive and comparative mixed-methods approach, this study investigated the experiences of sixth grade earth science students with groundwater physical models through an extended SE learning cycle format. The data collection was based on a series of quantitative and qualitative research tools intended to investigate…

This study evaluates the effects of an interdisciplinary standards-based school garden-based education program on student learning. The objective of the program is to help students learn to be self-directed learners, community contributors, complex thinkers, quality producers, effective communicators, and effective/ethical users of technology. For…