Scale Overview & Construct
121-item screening questionnaire designed to help distinguish autism-spectrum traits from schizotypal traits in adults, across two dimensions: Autism (71 items) and Schizotypy (50 items). The published protocol also included demographic questions, 3 objective-answer Cognitive Reflection Test items, and 3 multiple-choice social-cognition vignette items; all of those are excluded here since this platform only supports self-report Likert items.
Purpose & Measurement Objectives
Instrument Specifications
Academic Citation & Instrument Provenance
When referencing this instrument in research, academic theses, or clinical institutional audits, please cite the original author publication:
Governance, Boundaries & Ethical Use
Imported from the OpenScales open item-bank project. This specific digital implementation has not been independently clinically validated by PsiQ — scores are for self-reflection, research, and educational purposes only, and are not a diagnosis. The cited source paper is a pre-registration protocol; final validated scoring thresholds may appear in a later publication, so scores here are indicative only, not a validated cutoff-based screen.
License: CC BY 4.0. Citation: Parvaiz, R., Vindbjerg, E., Crespi, B., Happe, F., Schalbroeck, R., AlSayegh, Z., Danielsen, I. M., Tonge, B., Videbech, P., & AbuAkel, A. (2023). Protocol for the development and testing of the schiZotypy Autism Questionnaire (ZAQ) in adults. BMC Psychiatry, 23(1). This is not a diagnostic tool.