HEALTH SYSTEMS MANAGEMENT: Zori, S, et al, (2010), Health Policy and Systems: Critical Thinking of Nurse Managers Related to Staff RNs’ Perceptions of the Practice Environment, Journal of Nursing Scholarship, Volume 42, Issue 3, pages 305–313, September 2010. The positive relationship between strength in critical thinking dispositions of nurse managers and their respective staff RNs’ perceptions of the practice environment. Nurse managers with stronger CT dispositions may be better able to create positive practice environments that are conducive to job satisfaction and thus the retention of staff RNs. Inclusion of strategies to support the development and use of CT in nurse managers is recommended. CT and other leadership attributes and skills including emotional and social intelligence and management of change through an appreciative inquiry process may provide opportunities to improve leadership effectiveness in nurse managers.