The limited evidence available suggests that ATR has the potential to serve as measure of symptom validity, although its classification accuracy is generally inferior compared to well-established scales. Proposed cutoffs on the ATR vary from ≥ 7 to ≥ 15, depending on the assessment context. The Atypical Response scale (ATR) was designed to identify symptom exaggeration or fabrication. The TSI-2 has built-in symptom validity scales to monitor response bias and alert the assessor of non-credible symptom profiles. This systematic review was performed to summarize existing research on the symptom validity scales within the Trauma Symptom Inventory–Second Edition (TSI-2), a relatively new self-report measure designed to assess the psychological sequelae of trauma.
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