Perla, Rocco J., and James M. Carifio. 2011. “Theory Creation, Modification, and Testing: An Information Processing Model and Theory of the Anticipated and Unanticipated Consequences of Research and Development”. Journal of MultiDisciplinary Evaluation 7 (16):84-110. https://journals.sfu.ca/jmde/index.php/jmde_1/article/view/320.