Myers, N. D., Feltz, D. L., & Wolfe, E. W. (2008). A confirmatory study of rating scale category effectiveness for the Coaching Efficacy Scale. Research quarterly for exercise and sport, 79(3), S. 300-311. doi:10.1080/02701367.2008.10599493

Myers, Nicholas D., Deborah L. Feltz, and Edward W. Wolfe. "A Confirmatory Study of Rating Scale Category Effectiveness for the Coaching Efficacy Scale." Research Quarterly for Exercise and Sport 79, no. 3 (2008): S. 300-311.

Myers, Nicholas D., Deborah L. Feltz, and Edward W. Wolfe. "A Confirmatory Study of Rating Scale Category Effectiveness for the Coaching Efficacy Scale." Research Quarterly for Exercise and Sport 79.3 (2008): S. 300-311.