This field research report examined the efficacy of the Spectrum Assessment Model (SAM), a measure used to provide teachers and parents with a broad profile of preschool children's abilities, skills, and interests. The measure was developed by educators at Harvard and Tufts Universities in 1984 and assesses young children's cognitive abilities in mathematics, science, music, language, visual arts, movement, and social interaction. This study sought to determine preschool teachers' and parents' attitudes toward the SAM and teachers' ability to effectively utilize the measure without the assistance of researchers. Two teachers at the Winter Club Preschool in Lake Forest, Illinois, used the SAM to evaluate 20 students ages 3 through 5 over a 5-month period and discussed the results with the students' parents at parent-teacher conferences. Pre- and post-test parent surveys and post-test teacher surveys were conducted to measure both groups' attitudes toward the SAM. Results indicated that 74 percent of the parents thought the SAM was useful for the parent-teacher conferences. Both teachers felt the model provided a good basis for further development of curriculum and assessment models. Nine appendixes contain copies of the parent and teacher surveys, assessment profiles and activities, and correspondence with parents. (MDM)