Across three separate investigations, this dissertation documents work examining the role of higher-order processes and cognitive effort during the top-down compensatory repair of degraded speech, specifically perceptual restoration. Perceptual restoration is a phenomenon where a listener can perceptually restore or repair speech…

This study explores the relationship between perceived authenticity and cognitive engagement within authentic learning environments, a topic that has garnered increasing attention in educational research and practice. While previous studies have linked authenticity and engagement to improved academic outcomes, there remains a gap in understanding…

This dissertation investigates the problem of how variations in the intensity of three selected constructs--multimedia signaling, speed and pacing, and cognitive engagement prompts--affect attention and learning outcomes in online learning environments. The study explores the intersecting cognitive theories of cognitive load, higher order thinking…