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This instrument is used to screen for perfectionism-related attitudes and to differentiate potentially adaptive striving from potentially maladaptive self-evaluation. The Differential Test of Perfectionism provides a brief self-report snapshot that may inform case formulation and treatment planning.
Developed by Paul L. Hewitt and Gordon L. Flett, it consists of 24 items and typically takes about 5 minutes to complete. Results are generally interpreted in the context of presenting concerns (e.g., stress, anxiety, self-criticism) and alongside other clinical information.
The Differential Test of Perfectionism is intended for use in clinical and research settings as an adjunctive measure rather than a standalone diagnostic tool.