The A.R.T. program (Goldstein & Glick, 1987; Goldstein, Glick, & Gibbs, 1998; Glick & Gibbs, 2011) has gone through only minor changes through the years. This has been one of the strengths of the program indicating that the protocol should remain consistent in order to evaluate the effect of the program and also be able to replicate it in different countries. A strict protocol will also prevent trainers from making changes over time which could lead to program drift and a less effective approach. However, on several occasions Dr. Goldstein suggested that A.R.T. should be further developed according to newly available research and theory