“…One choice the instructor or facilitator must make is whether the PBL application is student centered or problem stimulated. These two approaches are differentiated by student versus instructor control of learning objectives, resource selection, and evaluation methods (Tanner, Keedy, & Galis, 1995). Barrows (1986) developed a taxonomy that identifies five varieties of PBL-lecture-based cases, case-based lecture, modified case-based, problem-based, and closed-loop problem based.…”