A psychiatric symptom checklist (SCL-90-R), autism spectrum and empathy quotients (AQ and EQ), and the Ekman Faces Test were used to investigate clinical symptoms and emotional processing.
All patients underwent clinical interviews and some self-reported questionnaires, such as the Symptom Check-List 90 (SCL-90) to measure psychiatric symptoms, the Eating Disorder Inventory (EDI) to measure ED-specific symptoms, and the Tridimensional Personality Questionnaire (TPQ) for personality traits.
The current study is therefore aimed at evaluating from a clinimetric viewpoint the severity of psychiatric symptoms affecting PD patients by using the Hopkins Symptom Checklist (SCL-90-R) to show its measurement-driven construct validity (scalability).
Finally, when companions of the expansion-positive individuals also completed the SCL-90-R on the participants, there was considerable consistency in the ratings of psychiatric symptoms.