Abstract
We examined the test–retest reliability of the Temperament and Character Inventory (TCI) in a clinical sample of 29 inpatients with opiate dependence disorder (DSM-IV). The previously validated French translation of the TCI was administered at baseline and again four weeks later. Intraclass correlation coefficients (ICCs) were used to estimate stability of the TCI over time for the 15 patients who completed the study. For all ICCs, the TCI showed satisfactory to excellent stability across all factors (ICC= 0.66–0.82). Stability was lower for the two temperamental traits of ‘persistence’ (ICC=0.51) and ‘reward dependence’ (ICC=0.63), possibly reflecting both clinical instability and measurement errors. These results highlighted the overall stability of the TCI in patients with opiate dependence and provided evidence for the usefulness of this questionnaire, which was originally designed to explore genetic and environmental factors underlying normal and abnormal personality dimensions. Further studies are required to confirm these results on larger clinical samples.
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