Purpose: Student-mothers from low-income families are three times as likely to drop out of college as female students without children. Yet, the economic and social benefits of postsecondary education for low-income mothers underscore the importance of examining environmental barriers to completing college for these women. Methods: The intent of this study, therefore, is to develop and validate an instrument, the school support scale, aimed at measuring the perception of emotional and tangible college support among student-mothers from low-income families. Results: Findings show excellent reliabilities for emotional (α = .944) and tangible (α = .888) subscales and indicate that student-mothers who perceive faculty and staff as supportive tend to have strong commitments to the institution (p = .01). Applications: The 22-item scale can be used as an “early-warning” tool for college counselors and administrators to support student-mothers in identifying and removing barriers that contribute to problems associated with college retention of low-income mothers.