This report presents the findings from the SEQUAL study focused on teaching staff employed in programs participating in Quality Counts in the spring of 2016. Almost all of the programs represented in this report were contracted with the California Department of Education or Head Start to provide services, and accordingly are held to more rigorous standards than other licensed non-contracted programs in the county. In the following section of this report, we describe the design of the study, including information about the sample, the survey instrument, and the data collection and analysis procedures. We next present findings, beginning with teaching staff responses to items in each of the five SEQUAL domains, including an analysis of how responses varied by site characteristics and quality ratings. The next section provides a detailed description of the personal and work characteristics of teaching staff and explores whether teaching staff assessments of their work environment varied with respect to these characteristics. The report concludes with a discussion of the implications of the findings and recommendations for action targeted towards funders and policymakers. (author abstract)