Affiliated Research & Standards
Third-party research, certification frameworks, and related institutions
This page documents affiliated research, assessment standards, archival production guidelines, commercial instruments, and related institutions that intersect with the Institute's field of study. Inclusion does not imply endorsement or formal collaboration.
Affiliated Research
Croft, J., March, C., & Voss-Hartley, A. (2016). Perceptual Consistency in Non-Clinical Populations: Observations from Game-Based Inkblot Response Data. Unpublished working paper. Held in IPS Archive.
Draws on response data gathered through gameplay rather than clinical assessment. The paper applies projective classification methodology to non-clinical response patterns and identifies perceptual consistency effects that the authors argue are independent of clinical context. A single copy is held in the Institute's archive. The paper was never submitted for publication. No peer review was conducted.
Assessment Standards & Certification
Perceptual Analytics Group. (2018). PAG-PAS-001: Projective Assessment System Certification. perceptan.org
Establishes the certification framework for projective assessment tools, including construct validation standards, adverse impact thresholds, and synthetic population testing requirements. The framework draws on the Croft Classification System and Taneja's cross-population variance methodology.
Perceptual Analytics Group. (2018). PAG-AIR-009: Adverse Impact Ratio Thresholding. perceptan.org
Establishes the 0.81 adverse impact ratio threshold used in PAG certification audits. The threshold is derived from Taneja's cross-population variance data and has been applied to synthetic candidate populations rather than to data drawn from live assessment deployments.
Perceptual Analytics Group. (2024). PAG-SEC-007: Restricted Technical Materials and Section 7 Access. Revised 2024. perceptan.org
Governs access to restricted technical documentation produced in the course of PAG certification audits. Revised in 2024 following the Institute's institutional review. The revision formalised access conditions for technical materials that contain demographic performance variance data.
Archival Production Standards
J. B. Fowler (Precision Stimuli). (2020). Digital Reproduction Standards for Archival Assessment Materials. jbfowler.co.uk
Establishes the technical specifications for digital reproduction of archival projective materials, including spectral scanning parameters, colour calibration standards, and perceptual equivalence validation protocols. Developed in consultation with the Institute for Projective Sciences and validated against PAG-PAS-001 perceptual equivalence thresholds.
Commercial Assessment Instruments
Obscura. (2020–). Technical Appendix (Sections 1–7). obscura.ink
Documents the construct architecture of a commercial AI-driven pre-hire assessment platform whose methodology draws on projective classification principles. Sections 1–6 describe construct definitions and signal dimensions. Section 7 contains construct-level performance variance data across demographic groups. Access to Section 7 requires a non-disclosure agreement.
Related Institutions
The following institutions and publications maintain work that intersects with the Institute's field of study. Their inclusion in this list reflects the Institute's practice of documenting relevant work in projective classification, across clinical and non-clinical domains, without implying institutional endorsement or collaboration. The Institute does not maintain formal relationships with all listed entities.