PsychIQ publishes the framework behind every test. This page goes further: for each published instrument we draw on, it names the rights holder, the citation, and the specific licence that permits our use — and it names the cases where an instrument is not free to reproduce, so we wrote our own items instead.
If an instrument is free to reproduce, we present it at its exact validated length and say so. If it is not, we do not reproduce it — we write original items from the published research on the same construct, and we say that too. We never imply an affiliation, endorsement, or accreditation we do not have. If you believe anything on this page is inaccurate or that we have used your work incorrectly, please contact us and we will correct or remove it promptly.
Kroenke, K., Spitzer, R. L., & Williams, J. B. W. (2001). The PHQ-9: Validity of a brief depression severity measure. Journal of General Internal Medicine, 16(9), 606–613.
Rights holder: Developed by Drs. Robert L. Spitzer, Janet B. W. Williams and Kurt Kroenke, with an educational grant from Pfizer Inc.
Licence basis: Released for reproduction, translation, display and distribution without requiring permission. Used here at its exact validated 9-item length and standard 0–3 response scale.
Used in: Depression Screening (PHQ-9)
Spitzer, R. L., Kroenke, K., Williams, J. B. W., & Löwe, B. (2006). A brief measure for assessing generalized anxiety disorder: the GAD-7. Archives of Internal Medicine, 166(10), 1092–1097.
Rights holder: Developed by Drs. Robert L. Spitzer, Janet B. W. Williams and Kurt Kroenke, with an educational grant from Pfizer Inc.
Licence basis: Released for reproduction, translation, display and distribution without requiring permission. Used here at its exact validated 7-item length.
Used in: Anxiety Screening (GAD-7)
Felitti, V. J., Anda, R. F., Nordenberg, D., et al. (1998). Relationship of childhood abuse and household dysfunction to many of the leading causes of death in adults. American Journal of Preventive Medicine, 14(4), 245–258.
Rights holder: Arising from the CDC–Kaiser Permanente Adverse Childhood Experiences Study.
Licence basis: In the public domain and widely reproduced in public-health practice. Used here at its exact 10-item length.
Used in: Childhood Adversity (ACE)
Kessler, R. C., Adler, L., Ames, M., et al. (2005). The World Health Organization Adult ADHD Self-Report Scale (ASRS). Psychological Medicine, 35(2), 245–256.
Rights holder: Copyright © 2003 World Health Organization. Developed in conjunction with the WHO and the Workgroup on Adult ADHD.
Licence basis: Reproduced under the WHO’s free-distribution terms for the instrument. PsychIQ is not affiliated with, nor endorsed by, the World Health Organization. Because we score a continuous frequency sum rather than the official Part-A shaded-box rule, our result is a trait profile and is explicitly not the official ASRS screening threshold.
Used in: Adult ADHD Profile
Goldberg, L. R. (1999). A broad-bandwidth, public-domain, personality inventory measuring the lower-level facets of several five-factor models. Personality Psychology in Europe, 7, 7–28.
Rights holder: Maintained by the Oregon Research Institute.
Licence basis: Explicitly public domain — the IPIP exists precisely so that Five-Factor measurement is free to use without permission or fee.
Used in: Big Five (OCEAN) Personality Profile
Constructs measured with original PsychIQ items because the best-known instrument in that area is not free to reproduce commercially. Research influence is acknowledged; the wording is ours.
The Autism-Spectrum Quotient (Baron-Cohen et al., 2001) is licensed by the Cambridge Autism Research Centre for research and clinical use, not for commercial reproduction. Our screener therefore uses entirely original items written from the published literature on the same five trait dimensions. It is not the AQ, is not a version of the AQ, and is not affiliated with or endorsed by the Autism Research Centre or the University of Cambridge.
Informed by Paulhus & Williams (2002) and the Short Dark Triad literature. Items are original; we do not reproduce the SD3 instrument.
Informed by the exhaustion / cynicism / efficacy structure described by Maslach & Jackson. The Maslach Burnout Inventory is a commercially licensed instrument and is not reproduced here — all items are original.
Informed by Peterson & Seligman’s values-in-action framework. The VIA Inventory of Strengths is separately licensed and is not reproduced; items are original.
Informed by the mindful-attention research tradition (Brown & Ryan, 2003). Items are original rather than reproduced.
Informed by Bowlby, Ainsworth, Hazan & Shaver (1987), and the two-dimensional anxiety × avoidance structure formalised in Fraley, Waller & Brennan’s ECR-R (2000). Items are original.
Our figural reasoning test sits in the progressive-matrix tradition established by Raven (1938). Every puzzle is generated procedurally from original transformation rules — no third party’s items are used, and we are not affiliated with any high-IQ society or testing organisation.
Trademarks and instrument names are the property of their respective owners and are used here for identification and citation only. Their mention does not imply affiliation or endorsement.