Calibration is the degree of correspondence between a learner’s perceived ability to successfully complete a task and actual ability demonstrated. Oral presentations evaluated by explicit criteria were utilized to examine learner ability beliefs assessed by a pretest (learner self-report), then demonstrated and assessed by a post-test (instructor evaluation) based on four criteria. Results suggest learners tended to over-estimate their abilities on eye contact, the use of gestures, and speaking time (length of presentation) with statistical significance, while underestimating their fluency ability though not statistically significant
