Screenshot attached. Here are the parts of the question I need help with:

? What type of study design is used? Please explain.

? Does the study design accurately test the null hypothesis?

? Is the correct statistical test used to analyze the data? Why? Why not?

Writing Results and Discussion Case Scenario Counselors and school counselors are concerned that the current treatments being offered for smoking dependence are not reSulting in a high enough percentage of successful outcomes for adolescents. A complicating factor is that many adolescents experience depression during treatment for smoking dependence. Mindfulness Therapy has demonstrated eicaey for the treatment of depression. The purpose of the study is to determine the efficacy of adding Mindfulness Therapy to the standard treatment program. The research question is: Will the addition of Mindfulness Therapy with standard treatment improve the efficacy of that treatment when used for adolescents with smoking dependence? The researchers designed a study using a convenience sample of 20 participants who have entered treatment for smoking dependence. The participants were randomly assigned to one of two treatment groups, the standard treatment program g the standard treatment program with Mindfulness Therapy. Participants will receive treatment for 16 weeks and then complete a Youth Specic version of the Nicotine Dependence Syndrome Scale (NDSS). The treatment groups are considered equivalent at the beginning of the study based on random assignment to groups. The null hypothesis states there will be no di'erence in scores on the NDSS between those who receive the standard treatment program and those who receive the standard treatment program with Mindfulness Therapy. The researcher used a paired or correlated groups t-test to analyze the data. The scores on the Youth-Specic NDSS for the two Standard Treatment & treatment groups are: Mindfulness Paired Samples T-Test Results The results are t(l9) = 6.42, p = .000. Standard Treatment Means = 13.25 (Standard Deviation = 3.50) Standard Treatment AND Mindfulness Means= 8.1 (Standard Deviation = 3.04)