“…The tendency for the participant to redefine his/her frame of reference after training, called response-shift bias, has been found in numerous studies using pre and post assessments in a variety of training situations, and causes pretest-posttest comparisons to be inaccurate (Blome & Augistin, 2016;Davis, 2002;Drennan & Hyde, 2008;Howard, 1980;Metzoff, 1981b;Schwartz & Sprangers, 2010;Umble, Upshaw, Orton, & Matthews, 2000). Response-shift bias means that the participant has shifted his/her internal definition of the criteria by which to judge the appropriate rating of an item because the training has impacted his/her frame of reference (Blome & Augustin, 2016;Davis, 2002;Drennan & Hyde, 2008;Howard, 1980;Metzoff, 1981b;Schwartz & Sprangers, 2010;Umble et al, 2000).…”