Person-focused, evidence-based care models that target core change processes based on testable theories. Growing concerns within the behavioral and cognitive field brought attention to the need for theoretical and philosophical development within the respective domains. Period of serious and rapid deconstruction of previous theories and rise in change-based processes, which focused on the function of cognition and emotion, rather than their form. CBT is currently an over-encompassing term for a variety of different philosophical assumptions, targeted processes, intervention approaches and philosophies.