The purposes of this study were (1) to determine the factor structure of the Teacher Temperament Questionnaire (TTQ); and (2) to use this questionnaire as an instrument to determine if the factor structure of the TTQ corresponded to the New York Longitudinal Study (NYLS) temperament qualities. The TTQ, consisting of 64 behavioral items, measures teachers' perceptions of the child's characteristic style of interacting with the school environment. For each of the eight NYLS temperament qualities there were eight TTQ items. Forty preschool and kindergarten teachers completed the TTQ for each child in their classrooms. Three hundred and sixty-six children were rated. Results clearly indicated overlap between the NYLS qualities and the TTQ on five of the eight factors: Focused-Distractive, Outgoing-Reserved, Placid-Assertive, Energetic-Quiet, and Responsive-Unresponsive. Correlations between the five factors and age and sex indicated that while sex was not significantly related to any of the five factors, older children were significantly more focused, less responsive, and less placid. (Author/MP)