BabcockJ. L. (1994, November). Assessing the utility of retrospective pretests. Paper presented at the annual meeting of the American Evaluation Association, Boston.
2.
BabcockJ. L. (1998, February). Retrospective pretests: Conceptual and methodological issues. Dissertation Abstracts International: Section B: the Sciences & Engineering, 58(8-B), 4513.
3.
SchwartzC. E., & SprangersM. A. G. (2000). Adaptation to changing health: Response shift in quality of life research.Washington, DC: American Psychological Association.