Child and Parent Understanding of Clinical Trials: The Semi-Structured Comprehension Interview
2015
Background: Understanding is an important goal of the informed consent process in research. We sought to assess the interrater reliability (IRR) and concurrent validity of two measures of understanding in child and young adult subjects and their parents. Methods: We conducted a cross-sectional survey and interview-based study of children and young adults participating in a clinical trial for cancer, along with one parent per child or young adult subject. We estimated the IRR of the Semi-Structured Comprehension Interview (SSCI) and the MacArthur Competence Assessment Tool for Clinical Research (MacCAT-CR). We also estimated concordance between the SSCI, the MacCAT-CR, and the Quality of Informed Consent (QuIC). Results: For our sample of 32 subjects (16 parent–child pairs), IRR estimates were high for total score on the SSCI (intraclass correlation coefficient [ICC] = 0.88, 95% confidence interval [CI] = 0.76–0.94), as well as on the understanding (ICC = 0.93, 95% CI = 0.86–0.97) and reasoning (ICC = 0.97...
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