Assessment instrument catalogue

Factual metadata about widely discussed screening and assessment measures, with licence classification, official sources and interpretation cautions. No test items, forms or scoring tools are reproduced here.

Instruments
InstrumentConstructCategoryLicence classificationVerification
PHQ-9
Patient Health Questionnaire-9
Depressive symptom severity over the past two weeks, mapped to DSM-IV depressive-episode criteria in its original form. Depression and anxiety screening Free · no permission required (developer statement) Licence statement checked
GAD-7
Generalized Anxiety Disorder-7
Severity of generalised anxiety symptoms over the past two weeks. Depression and anxiety screening Free · no permission required (developer statement) Licence statement checked
K10 / K6
Kessler Psychological Distress Scales
Non-specific psychological distress (anxiety and depressive symptoms) over a recent period. Psychological distress Copyrighted · use with attribution Licence statement checked
DASS-21
Depression Anxiety Stress Scales — short form
Three dimensions of negative emotional states: depression, anxiety and stress (tension). Psychological distress Public domain (developer statement) Licence statement checked
WHO-5
World Health Organization-Five Well-Being Index
Current subjective psychological well-being. Stress and well-being Open licence with conditions Licence statement checked
PSS-10
Perceived Stress Scale (10-item)
The degree to which situations in one's life are appraised as stressful — unpredictable, uncontrollable and overloading. Stress and well-being Permission required (free request) Licence statement checked
PCL-5
PTSD Checklist for DSM-5
The 20 DSM-5 symptoms of post-traumatic stress disorder. Trauma-related symptoms Public domain (developer statement) Licence statement checked
PC-PTSD-5
Primary Care PTSD Screen for DSM-5
Probable PTSD in primary-care settings. Trauma-related symptoms Public domain (developer statement) Licence statement checked
AUDIT
Alcohol Use Disorders Identification Test
Hazardous and harmful alcohol use and possible dependence. Substance-use screening Verification required Verification required
ISI
Insomnia Severity Index
Perceived severity and impact of insomnia symptoms. Sleep and functioning Verification required Verification required
WHODAS 2.0
WHO Disability Assessment Schedule 2.0
Health-related functioning and disability across life domains, linked to the ICF framework. Sleep and functioning Verification required Verification required
WAIS
Wechsler Adult Intelligence Scale (current edition: WAIS-5)
General intellectual ability and index-level cognitive abilities in adults. Personality and cognitive assessment Proprietary · qualified users only Edition and publisher located; evidence not summarised
MMPI
Minnesota Multiphasic Personality Inventory (current edition: MMPI-3)
Broad personality and psychopathology, with validity scales for response style. Personality and cognitive assessment Proprietary · qualified users only Edition and rights holder located; evidence not summarised
Rorschach
Rorschach Inkblot Method
Perceptual–cognitive and personality processes inferred from responses to ambiguous inkblots. Personality and cognitive assessment Proprietary · qualified users only Verification required for current publisher terms

Licence classifications used

Public domain (developer statement)
The developer states the instrument is in the public domain. Confirm the exact version on the official page; translations may have their own conditions.
Free · no permission required (developer statement)
The developer states that no permission is needed to reproduce, translate, display or distribute. Attribution is still good practice.
Open licence with conditions
Published under a named licence (for example Creative Commons Non-Commercial Share-Alike). Uses must follow its conditions, such as non-commercial use and attribution.
Copyrighted · use with attribution
The developer permits use but requires copyright acknowledgement and a specific citation.
Permission required (free request)
Use requires a permission request through the named rights holder or distributor, even where no fee is charged.
Proprietary · qualified users only
Commercially published and restricted to appropriately qualified professionals. Items, stimuli, norms and scoring materials must not be copied or shared.
Verification required
Reuse terms could not be confirmed from an official source for this catalogue. Only factual metadata is published. Check with the rights holder before any use.