1. A motivational perspective on change process and outcomes;European Journal of Work and Organizational Psychology,2004
2. What you see may not be what you get: a brief, nontechnical introduction to overfitting in regression-type models;Psychosomatic Medicine,2004
3. The moderator-mediator variable distinction in social psychological research: conceptual, strategic, and statistical considerations;Journal of Personality and Social Psychology,1986
4. Barrett, E.A.M. (1990), “A measure of power as knowing participation in change”, in Strickland, O. and Waltz, C. (Eds), The Measurement of Nursing Outcomes: Measuring Client Self-Care and Coping Skill, Springer, New York, pp. 159-180.