Stairs, A., Smith, G., Zapolski, T., Combs, J., & Settles, R. (2012). Clarifying the construct of perfectionism. Assessment, 19(2), 146-66. https://doi.org/10.1177/1073191111411663

Zapolski, T., Stairs, A., Settles, R., Combs, J., & Smith, G. (2010). The measurement of dispositions to rash action in children. Assessment, 17(1), 116-25. https://doi.org/10.1177/1073191109351372