According to school growth mindset theory a school's organizational structure influences teachers' beliefs in their collective ability to help all students grow and learn; including those from diverse cultural, religious, identity, and socioeconomic demographics. The implicit theory of growth mindset has been quantified for a school's culture on the What's My School Mindset scale. This exploratory study was an initial effort to examine the content validity of the school growth mindset construct using SPSS to perform correlation analysis with multicultural relevant, organizational learning variables from the literature that were shown to explain improved school outcomes. Regression analysis tested the hypothesis that the independent variables would explain variations in a school's growth mindset mean. Data was collected from a random stratified sample of middle and high school teachers (n = 64) and administrators (n = 5) in a large northwestern state. Responses were collected on the 19-question Likert-style WMSM survey. The overarching research question was, Is there a relationship between principal openness to change, faculty openness to change, work locus of control, and a school growth mindset? The results revealed organizational learning variables significantly correlated with a growth mindset culture and explained significant variations in the WMSM mean. The results have positive implications for providing school administrators with a way to measure their school's culture and to provide feedback to teachers that can challenge their beliefs and inform improvements in culturally responsive teaching practices.