Exam 13: Single Case Evaluation Designs

If a self-report scale has high reliability and validity in group research,we can assume it will have equally high reliability and validity in single-case experiments.

Explain what is accomplished by replicating single-case designs.(One part of your answer should address internal validity; another part should address external validity.)

Which of the following approaches would be least obtrusive in regard to measuring the impact of the above groupwork intervention on school performance?

Discuss why it can be argued that a single-case AB design,if done appropriately,has greater internal validity than a simple pretest/posttest group design (with no control group).

A social work student seeks to reduce her own general level of anxiety through self-desensitization.She used the last five weeks of the fall semester for her baseline and the first five weeks of the spring semester for her intervention period.Why is this a problem? What alternative do you propose?

Suppose you obtained the following results in an ABAB design assessing the effectiveness of family therapy in reducing a child's temper tantrums.Which interpretation(s)is(are)plausible? Number of tantrums per day: A: 4 5 4 5 4 4 B: 1 1 1 0 0 0 A2: 0 0 0 0 0 0 B2: 0 0 0 0 0 0

In a single-case design with a student at high risk for dropping out of school,a good measurement plan to assess whether our intervention is effective would be to monitor whether or not he/she drops out of school.

If the target problem improves at any point during the intervention phase,it is safe to infer that the intervention is effective.

In deciding what to measure in a single-case experiment,it is usually best to

Discuss why it is best to have as many measurement points as possible in a single-case design.

Suppose our research methods cause the client to improve.This would be termed

Suppose an ABCD design obtains the following results regarding level of social adjustment with a chronically mentally ill client discharged to live with his family. A (Baseline): 10 10 10 10 10 B (Social skills training): 10 10 10 10 10 C (Occupational Rehabilitation): 10 10 10 10 10 D (Family education): 15 20 25 30 35 What is the most appropriate inference for future interventions with similar clients?