In this study, the authors used confirmatory factor analysis to verify construct validity for the Teachers’ Attitudes Toward Computers (TAC) Questionnaire. This questionnaire is an instrument created from 32 well-validated scales, as a more parsimonious questionnaire covering areas assessed by previously existing instruments in the field. The authors to conclude that the TAC is a well-validated, reliable instrument for teachers’ self-appraisal of their attitudes toward computers.