Learning by observation has long been a traditional method of learning. Recent work has pointed toward collaboratively observing tutoring as a promising new method for observational learning. Our current study tested this new method in the PSLC physics LearnLab where students were introduced two topics of rotational kinematics by observing videos while problem solving in Andes. The students were randomly assigned to a pair condition that collaboratively observed a video of an expert tutoring or providing an example, or to a solo condition that observed a video of an expert worked example. Several robust and normal learning measures were collected, however, to date only multiple choice measures have been analyzed. Students' performance on the multiple choice questionnaires revealed significant pretest to posttest gains for all conditions. However, no differences have been found among conditions for normal learning measures.
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