The study developed and used a self-report graphic Multisensory Imagery Scale (MIS) to analyze imaginal behavior, and to test the hypothesis that multisensory (MS) imagery is a specific teacher competency associated with effective teaching, particularly in special education. The MIS was field-tested, abbreviated, performed on teacher trainees, examined for test-retest reliability, and compared to performance criteria in three successive experiments. Twenty image-evoking phrases of the MIS, cumulatively self-scored for the six sensory areas, yielded consistent imagery responses in agreement with the ratings of lesson plans and teaching. The data defended the hypotheses, indicated the scale's limited usefulness as a criterion for evaluating groups of interns and training programs, and implied support for competency based teacher education if properly validated. (Author)