Effectiveness of Treatments
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8 Terms
What did Eysenck argue?
Psychotherapy is no more effective than natural recovery.
What did he believe can occur over time?
Improvement without any treatment.
Conceptual Issues in Evaluating the Effectiveness of Therapy
Duration of improvement
Symptom reduction vs full recovery
Validity of diagnosis (depression severity varies in / clients may not be directly comparable)
Measurement Issues of Evaluating the Effectiveness of Therapy
Reliance on self-reports
Family/friends’ observations
Differences between observable behaviour and internal experience.
Objectivity Issue in Evaluating the Effectiveness of Therapy
The objectivity issue concerns who decides whether therapy is successful.
Define Meta-analysis.
A meta-analysis systematically assesses the results of previous research to derive conclusions about that body of research.
Strengths of Meta-analysis
More reliable than single studies and identifying overall trends.
Weaknesses of Meta-analysis
Publication bias, as studies with negative results are often unpublished
Researcher bias when choosing which studies to include in a meta-analysis.
