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Psychometric properties Reliability and validity Test-retest reliability yielded Intra-Class Correlation Coefficients (ICCs) ranging from 0.81 to 0.89 (N = 128) according to the scale under scrutiny. Cronbach alpha coefficients ranged between 0.59 and 0.83. Test-retest reliability results from another study on a larger sample (Bergeron et al., Canadian Journal of Psychiatry, accepted) are within the same range. This study also establishes criterion validity through correspondences between Dominic-based diagnoses and clinical judgment. Significant differences between clinical and non-clinical samples were also demonstrated. Detailed results cannot be reported here as long as the article has not been published. The first version of the Dominic Adolescent included questions about symptom frequency and duration with the aim of yielding full DSM diagnoses. Those questions, however, greatly reduced psychometric properties and were taken out.
The Dominic Adolescent also presents a limitation of its own:
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