The purpose of this article is to explore validity evidence and appropriate uses of the revised Technology Uses and Perceptions Survey (TUPS) designed to measure in-service teacher perspectives about technology integration in K–12 schools and classrooms. The revised TUPS measures 10 domains, including Access and Support; Preparation of Technology Use; Perceptions of Professional Development; Perceptions of Technology Use; Confidence and Comfort Using Technology; Technology Integration; Teacher Use of Technology; Student Use of Technology; Perceived Technology Skills; and Technology Usefulness. We first provide a review of the literature supporting the design of the revised TUPS. We collected data from N = 1,376 teachers from one medium-sized school district in the state of Florida and conducted a variety of psychometric analyses. We performed internal structure analysis, correlation analysis, and factor analysis with these data. The results demonstrate that data collected from the TUPS are best used as descriptive, granular information about reported behaviors and perceptions related to technology, rather than treated as a series of 10 scales. These findings have implications for the appropriate uses of the TUPS.