Researchers developed Iteration-1 of a digital tablet tutorgame exploring the impact of narratives (strong (S) vs. weak (W)) and gestural mechanics (conceptual (C) vs. deictic (D)) on players’ understanding of mathematical fractions. In a two-by-two factorial design, 3, 4, and 5 grade elementary students at an afterschool program in Harlem, NYC (NTTL=72; x̄AGE=10.31 years [1.64], 67% female) wer...

OBJECTIVES Clinical skills expertise can be advanced through accessible and cost-effective video-based observational practice activities. Previous findings suggest that the observation of performances of skills that include flaws can be beneficial to trainees. Observing the scope of variability within a skilled movement allows learners to develop strategies to manage the potential for and conse...

Conversation, Learning and Informational Cascades We offer a model to explain why groups of people sometimes converge upon poor decisions and are prone to fads, even though they can discuss the outcomes of their choices. Models of informational herding or cascades have examined how rational individuals learn by observing predecessors’ actions, and show that when individuals stop using their own...

Observational learning can debias judgment and decision making. One-shot observational learning-based training interventions (akin to “hot seating”) produce reductions in cognitive biases the laboratory (i.e., anchoring, representativeness, social projection), successfully teach a rule that increases advice taking weight on paradigm averaging principle). These improve judgment, learning, more t...