Expertly designed, the Structured Clinical Interview for the DSM-5 Alternative Model for Personality Disorders (SCID-5-AMPD) is a semistructured diagnostic interview that guides clear assessment of the defining components of personality pathology as presented in the DSM-5 Alternative Model. The paramount tool for the use of SCID-5-AMPD, the User's Guide for the SCID-5-AMPD provides readers with an essential manual to effectively understand and use any SCID-5-AMPD module. Integrating an overview of the DSM-5 Alternative Model, this companion guide provides instructions for every SCID-5-AMPD module and features completed samples of all modules in full, with corresponding sample patient cases and commentary. The modular format of the SCID-5-AMPD allows the researcher or clinician to focus on those aspects of the Alternative Model of most interest. The User's Guide for the SCID-5-AMPD fully explicates each module—available individually or in customized sets: • Module I is devoted to the dimensional assessment of self and interpersonal functioning using the Level of Personality Functioning Scale. • Module II focuses on the dimensional assessment of the five pathological personality trait domains and corresponding 25 trait facets. • Module III is a comprehensive assessment of each of the six specific personality disorders of the DSM-5 Alternative Model, as well as Personality Disorder–Trait-Specified, and includes a global assessment of the level of personality functioning. Trained clinicians with a basic knowledge of the concepts of personality and personality psychopathology will find the SCID-5-AMPD a valuable tool in the assessment and study of personality disorders.