A Novel Approach to Personalized Personality Assessment with the Attachment-Caregiving Questionnaire: First Evidence in Favor of Interpretation-Oriented Inventory Designs

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In clinical psychology and psychiatry, personality is usually assessed using questionnaires developed through factor analysis (FA). Essential domains are identified, which correspond to questions/items defining a (sub)scale, and each question is rigidly assigned to one scale, giving the item the same meaning regardless of how the respondent may interpret it. However, this rigidity might hinder the instrument’s assessment capability. We tested this hypothesis using the Attachment-Caregiving Questionnaire (ACQ), a clinical and personality self-report that—through extra-scale information—allows the clinician to infer the possible different meanings that the subjects attribute to the items. Considering four psychotherapy patients, we compared the scoring of their ACQs provided by expert clinicians to the detailed information gained from therapy and the patients. Our results indicated that questions could be interpreted differently—receiving the same score for different (clinically relevant) reasons—potentially impacting personality assessment and clinical decision-making. Moreover, accounting for multiple interpretations requires a specific questionnaire design. Overall, our analysis suggests that a meaning-sensitive, personalized read of a personality self-report may improve profiling and treatment, implying the necessity of more advanced pattern recognition than the one produced by FA or similarly rigid methods, which artificial intelligence may provide. More evidence is required to support these preliminary findings.