Development and psychometric evaluation of the Personal Growth Initiative Scale-II
Journal of Counseling Psychology (2012) - Comment
pubmed: 22352950  doi: 10.1037/a0027310  issn: 0022-0167  issn: 1939-2168 

Christine Robitschek, Matthew W. Ashton, Cynthia C. Spering, Nathaniel Geiger, Danielle Byers, G. Christian Schotts, Megan A. Thoen