Journal of Positive Behavior Interventions, Positive Behavior Support: Evolution of an Applied Science," (Carr, Edward, Dunlap, Glen, Horner, Robert, et al.) Vol. 4, No. 1 (2002). PBS provides a means for selecting, organizing and implementing evidenced-based practices in the treatment of individuals. It focuses on clearly defined outcomes, data-based decision making and problem-solving processes that support practices with fidelity and durability. PBS emphasizes the use of positive behavior approaches and recognizes that behavior is often an individual's response or reaction to the environment and the need to communicate his or her preferences and wants to others. Therefore, PBS focuses on environmental modifications and antecedents. The strategies used to modify the behavior of individuals should involve PBS, which promote the dignity and respect of individuals, and should not be unduly restrictive or intrusive. It is both sound law and policy to use only procedures which have been determined to be the least restrictive or least intrusive alternatives.
115 CMR, § 5.14