In the context of digital transformation, educational institutions, including high schools, must also implement a comprehensive change. The operating model of high schools must move to a state that all activities are applied digital technologies. To accomplish this process, the behavioral change of teachers plays a crucial role. However, the issue of assessing the psychological readiness of high school teachers for this process has not been paid attention. Therefore, this study conducted to develop a scale to assess the readiness of high schools for digital transformation in Vietnam basing on the procedures proposed by Mackenzie et al. (2011). The results of assessing the validity and reliability of the scale have given a scale consisting of 30 items with five constructs. This is one of the useful tools to assess the digital transformation readiness of high schools in Vietnam, on such basis, managers and stakeholders have appropriate solutions to improve the readiness level of schools to successfully implement the digital transformation process.
 Z. van Veldhoven and J. Vanthienen, (2019), Designing a comprehensive understanding of digital transformation and its impact, In 32nd Bled eConference Humanizing Technology for a Sustainable Society, BLED 2019 - Conference Proceedings, pp.745–763.
 D. T. Holt, (2002), Readiness for change: The development of a scale, Auburn University.
 K. Lewin, (1947), Frontiers in group dynamics: II, Channels of group life; social planning and action research, Hum. relations, vol.1, no.2, pp.143–153.
 D. T. Holt and J. M. Vardaman, (2013), Toward a comprehensive understanding of readiness for change: The case for an expanded conceptualization, J. Chang. Manag., vol.13, no.1, pp. 9–18.
 C. Argyris and D. A. Schon, (1978), Organizational Learning: A theory of action perspective, Reis, (77/78), p.345-348.
 S. Oreg, (2003), Resistance to change: Developing an individual differences measure, J. Appl. Psychol., vol.88, no.4, p.680.
 B. Shimoni, (2019), Organization development and society: Theory and practice of organization development consulting, Routledge.
 L. Coch and J. R. P. French Jr, (1948), Overcoming resistance to change, Hum. relations, vol.1, no.4, pp.512–532.
 B. J. Weiner, (2009), A theory of organizational readiness for change, Implement. Sci., vol. 4, no.1, pp.1–9.
 S. B. Mackenzie, P. M. Podsakoff, and N. P. Podsakoff, (2011), Construct measurement and validation procedures in MIS and behavioral research: Integrating new and existing techniques, MIS quarterly, vol. 35, no. 2, pp. 293–334.
 A. Bandura, W. H. Freeman, and R. Lightsey, (1999), Self-efficacy: The exercise of control, Springer.
 J. F. Hair Jr, William, B. J. Babin, and R. E. Anderson, (2014), Multivariate data analysis (MVDA), Pharm. Qual. by Des. A Pract. Approach.
 C. M. Shea, S. R. Jacobs, D. A. Esserman, K. Bruce, and B. J. Weiner, (2014), Organizational readiness for implementing change: a psychometric assessment of a new measure, Implement. Sci., vol.9, no.1, pp.1–15.
 R. F. DeVellis, (2017), Scale development: Theory and applications, Fourth Edi. SAGE.
 L. Cohen, L. Manion, and K. Morrison, (2012), Research methods in education. 6th ed., vol.38, no.3. Routledge.
 R. L. Piedmont and A. C. Michalos, (2014), Encyclopedia of quality of life and well-being research, Michalos ACeditor. Inter-item Correl. Springer.
 F. F. R. Morgado, J. F. F. Meireles, C. M. Neves, A. Amaral, and M. E. C. Ferreira, (2017), Scale development: ten main limitations and recommendations to improve future research practices. Psicol. Reflexão e Crítica, vol.30, no.3.
 M. A. Efroymson, (1960), Multiple regression analysis. Math. methods Digit. Comput., pp. 191–203.
 A. Hayes, (2020), Stepwise regression, https://www. investopedia.com/terms/s/stepwise-regression. asp#:~:text=Stepwise regression is the step, statistical significance after each iteration, truy cập ngày 10/10/2022.
 J. E. I. Barlett, J. Kotrlik, and C. Higgins, (2001), Organizational research: Determining appropriate sample size in survey research, Inf. Technol. Learn. Perform. J., vol.19, no.1, p.43.