Depression and low mood.

52 catalogued instruments are currently grouped under this construct, across 4 domains: Clinical: broadband and severity; Clinical: mood, anxiety and stress; Developmental, child, family and couple; Work: attitudes and wellbeing.

This grouping is editorial and provisional. It is derived from what each entry says it measures, it has not been reviewed instrument by instrument, and 195 catalogued instruments are not yet grouped under any construct. Treat the list as a starting point rather than a complete answer, and read each entry for what it actually covers.

• BSI-18 - Brief Symptom Inventory-18

  Clinical: broadband and severity. 18 items. copyrighted - commercial.

• GHQ-28 - General Health Questionnaire-28

  Clinical: broadband and severity. 28 (4 x 7-item subscales). copyrighted - commercial.

• K10 - Kessler Psychological Distress Scale (K10)

  Clinical: broadband and severity. 10 items. public-domain / open.

• BASIS-24 - Behavior and Symptom Identification Scale-24

  Clinical: broadband and severity. 24 items. copyrighted - commercial.

• SANS - Scale for the Assessment of Negative Symptoms

  Clinical: broadband and severity. 25 (orig.); commonly cited 19-25. copyrighted - author permission.

• CAPE - Community Assessment of Psychic Experiences

  Clinical: broadband and severity. 42 items. open with attribution.

• WHO-5 Well-Being Index

  Clinical: broadband and severity. 5 items. public-domain / open.

• DSM-5 CCSM L1 - DSM-5 Self-Rated Level 1 Cross-Cutting Symptom Measure (Adult)

  Clinical: broadband and severity. 23 (adult self-rated). open with attribution.

• BNSS - Brief Negative Symptom Scale

  Clinical: broadband and severity. 13 items. copyrighted - author permission.

• CPRS - Comprehensive Psychopathological Rating Scale

  Clinical: broadband and severity. 65 (40 reported + 25 observed items). open with attribution.

• Mini International Neuropsychiatric Interview

  Clinical: broadband and severity. ~120 yes/no probes (modular; varies by version). copyrighted - author permission.

• SRQ-20 - Self-Reporting Questionnaire-20

  Clinical: broadband and severity. 20 (SRQ-20; full SRQ has 25 items incl. psychotic/seizure items). public-domain / open.

• MHI-5 - Mental Health Inventory-5

  Clinical: broadband and severity. 5 (derived from the 38-item MHI; 18-item MHI-18 also exists). public-domain / open.

• CORE-10 - Clinical Outcomes in Routine Evaluation-10

  Clinical: broadband and severity. 10 items. open with attribution.

• 4DSQ - Four-Dimensional Symptom Questionnaire

  Clinical: broadband and severity. 50 items. open - non-commercial only.

• CCAPS - Counseling Center Assessment of Psychological Symptoms

  Clinical: broadband and severity. 62 (CCAPS-62); 34 (CCAPS-34 short form). copyrighted - author permission.

• CIS-R - Clinical Interview Schedule - Revised

  Clinical: broadband and severity. 14 symptom sections, each with a mandatory filter question plus up to 5 severity items; total administered items vary with branching. copyrighted - author permission.

• BDI-II - Beck Depression Inventory-II

  Clinical: mood, anxiety and stress. 21 items. copyrighted - commercial.

• BDI-IA - Beck Depression Inventory-IA (amended 1978)

  Clinical: mood, anxiety and stress. 21 items. copyrighted - commercial.

• PHQ-9 - Patient Health Questionnaire-9

  Clinical: mood, anxiety and stress. 9 (+1 functional-impairment item, unscored). public-domain / open.

• PHQ-8 - Patient Health Questionnaire-8

  Clinical: mood, anxiety and stress. 8 items. public-domain / open.

• PHQ-2 - Patient Health Questionnaire-2

  Clinical: mood, anxiety and stress. 2 items. public-domain / open.

• CES-D - Center for Epidemiologic Studies Depression Scale

  Clinical: mood, anxiety and stress. 20 items. public-domain / open.

• CES-D-R / CESD-R - Center for Epidemiologic Studies Depression Scale - Revised

  Clinical: mood, anxiety and stress. 20 items. public-domain / open.

• HAM-D / HDRS / HRSD - Hamilton Depression Rating Scale (Hamilton Rating Scale for Depression)

  Clinical: mood, anxiety and stress. 17 (HDRS-17 core); 21- and 24-item extended versions exist. public-domain / open.

• MADRS - Montgomery-Asberg Depression Rating Scale

  Clinical: mood, anxiety and stress. 10 items. public-domain / open.

• QIDS-SR16 - Quick Inventory of Depressive Symptomatology - Self-Report

  Clinical: mood, anxiety and stress. 16 (scored to 9 domains). public-domain / open.

• IDS (IDS-SR30 / IDS-C30) - Inventory of Depressive Symptomatology

  Clinical: mood, anxiety and stress. 30 (self-report IDS-SR and clinician IDS-C). public-domain / open.

• SDS / Zung SDS - Zung Self-Rating Depression Scale

  Clinical: mood, anxiety and stress. 20 items. public-domain / open.

• EPDS - Edinburgh Postnatal Depression Scale

  Clinical: mood, anxiety and stress. 10 items. copyrighted - author permission.

• GDS (GDS-30 / GDS-15) - Geriatric Depression Scale

  Clinical: mood, anxiety and stress. 30 (long form); 15 (short form). public-domain / open.

• PROMIS Depression (Emotional Distress - Depression item bank)

  Clinical: mood, anxiety and stress. 28-item adult bank; 4-, 6-, 8-item nested short forms; CAT. public-domain / open.

• BHS - Beck Hopelessness Scale

  Clinical: mood, anxiety and stress. 20 items. copyrighted - commercial.

• ODSIS - Overall Depression Severity and Impairment Scale

  Clinical: mood, anxiety and stress. 5 items. public-domain / open.

• BAI - Beck Anxiety Inventory

  Clinical: mood, anxiety and stress. 21 items. copyrighted - commercial.

• HADS - Hospital Anxiety and Depression Scale

  Clinical: mood, anxiety and stress. 14 (7 anxiety + 7 depression). copyrighted - commercial.

• DASS-21 - Depression Anxiety Stress Scales - 21

  Clinical: mood, anxiety and stress. 21 (7 per subscale). public-domain / open.

• DASS-42 - Depression Anxiety Stress Scales - 42

  Clinical: mood, anxiety and stress. 42 (14 per subscale). public-domain / open.

• K10 - Kessler Psychological Distress Scale (10-item)

  Clinical: mood, anxiety and stress. 10 items. public-domain / open.

• PHQ-4 - Patient Health Questionnaire-4

  Clinical: mood, anxiety and stress. 4 (2 anxiety + 2 depression). public-domain / open.

• STICSA - State-Trait Inventory for Cognitive and Somatic Anxiety

  Clinical: mood, anxiety and stress. 21 per scale (state and trait forms; 10 cognitive + 11 somatic each). open with attribution.

• MDI - Major Depression Inventory

  Clinical: mood, anxiety and stress. 10 (12 questions; two pairs scored as single items). public-domain / open.

• POMS - Profile of Mood States

  Clinical: mood, anxiety and stress. 65 (standard); 37/35/30-item short forms; POMS 2 adult and youth forms. copyrighted - commercial.

• IDAS-II - Inventory of Depression and Anxiety Symptoms-II

  Clinical: mood, anxiety and stress. 99 (IDAS-II); 64 (original IDAS). open with attribution.

• CDSS - Calgary Depression Scale for Schizophrenia

  Clinical: mood, anxiety and stress. 9 items. open with attribution.

• RRS / RRS-10 - Ruminative Responses Scale

  Clinical: mood, anxiety and stress. 22 (RRS); 10 (RRS-10, brooding + reflection). open with attribution.

• CSDD - Cornell Scale for Depression in Dementia

  Clinical: mood, anxiety and stress. 19 items. open with attribution.

• Whooley Questions

  Clinical: mood, anxiety and stress. 2 (+ 1 optional help question). public-domain / open.

• CBCL / ASEBA - Child Behavior Checklist (and the ASEBA school-age forms: CBCL/6-18, Teacher's Report Form, Youth Self-Report)

  Developmental, child, family and couple. 120 (CBCL/6-18 problem items); TRF ~120; YSR ~119; CBCL/1.5-5 (preschool) 100 problem items. copyrighted - commercial.

• BASC-3 - Behavior Assessment System for Children, Third Edition

  Developmental, child, family and couple. varies by form (Teacher/Parent Rating Scales ~100-175 items; Self-Report of Personality ~130-185). copyrighted - commercial.

• CDI 2 - Children's Depression Inventory, Second Edition

  Developmental, child, family and couple. 28 (CDI 2:SR); 12-item Short form; Parent (17) and Teacher (12) rating forms. copyrighted - commercial.

• GJSQ - NIOSH Generic Job Stress Questionnaire

  Work: attitudes and wellbeing. modular (~100+ if full; modules selectable). public-domain / open.

Browse the whole catalogue to search by name, acronym or wording, and filter by domain, licence, length and language version. That search reads each entry’s own description rather than this grouping, so it reaches instruments no construct page lists, and misses some that this page holds.