So sánh phương pháp

	Thang đo Lãnh đạo Chuyển đổi	Thang đo An toàn Tâm lý
Lĩnh vực	Hành vi tổ chức	Hành vi tổ chức
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1985	1999
Người khởi xướng	Bernard M. Bass and Bruce J. Avolio	Amy C. Edmondson
Loại	Self-report questionnaire	Team-level self-report questionnaire
Công trình gốc	Bass, B. M. (1985). Leadership and performance beyond expectations. New York: The Free Press. ISBN: 978-0029015001	Edmondson, A. C. (1999). Psychological safety and learning behavior in work teams. Administrative Science Quarterly, 44(2), 350-383.
Tên gọi khác	TLS, MLQ, Multifactor Leadership Questionnaire	PSS, Team Psychological Safety Scale
Liên quan	5	5
Tóm tắt	The Transformational Leadership Scale (TLS), operationalized in the Multifactor Leadership Questionnaire (MLQ), was developed by Bass and Avolio (1985, 1991) to measure leadership styles across a continuum from transactional to transformational. Transformational leadership comprises four dimensions: idealized influence (role modeling and inspiration), inspirational motivation (articulating compelling vision), intellectual stimulation (encouraging innovation), and individualized consideration (personalized development). The scale has become foundational in organizational psychology and management research for understanding leadership effectiveness and organizational outcomes.	The Psychological Safety Scale (PSS), developed by Amy Edmondson in 1999, measures team members' shared perception that they can take interpersonal risks—speaking up, asking questions, admitting mistakes, proposing new ideas—without fear of embarrassment, punishment, or rejection. The 7-item scale captures a team-level construct fundamental to learning, innovation, and psychological well-being. High psychological safety predicts team performance, learning from errors, information sharing, and adaptive responses to change.