The outcome evaluation project at hand involves an intervention aimed at rehabilitating a group of individuals influenced by alcoholism and drug addiction. The main objective is to determine whether a group-based cognitive behavioral therapy is significant for treating the drug addicts. This is ascertained by focusing on specific groups of participants so as to accord them specific treatments or rehabilitation based on their prevailing conditions.
The group design intervention that is deemed as the most appropriate is cognitive behavioral therapy (CBT). It is one of the most commonly used intervention since its introduction in 1970s. CBT is an effective individual or group therapy that is often utilized for treating alcohol and drug addicts, among many other associated disorders such as depression and anxiety. This intervention can either be used single-handedly or with other therapeutic interventions that assists drug addicts to maintain and achieve sobriety. The most appropriate aspect of this design is that it allows an individual to split the drug addicts into various groups based on the type of abused drugs. This enhances a smooth intervention and easier attainment of therapeutic alliance amongst the target groups. In addition, the use of CBT for solving drug addiction and substance abuse is appropriate since it primarily focuses on emotions, thoughts, and behavioral conducts; while at the same time providing patients with necessary coping skills for resisting triggers and avoiding relapse.
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Based on the selected quasi-group design, there are two probable threats to internal validities. These involves the aspect of history and selection. The threat associated to history means that the purported effects of the intervention might be due to subsequent non-treatment events that occurs between post- and pre-testing. On the other hand, the aspect of selection purports that unless the control and experimental groups are formed via random assignments, the variations realized in the outcome measures can be inclined to the groups rather than the treatment itself.
