Folio Surveyor · preview

Patient Health Questionnaire-9 (PHQ-9), ready to run

A 9-item self-report instrument for screening and measuring the severity of depression, based on DSM diagnostic criteria.

9 items · 4-point frequency scale

This is a preview

Read-only. Nothing is saved until you have an account. Then the PHQ-9 is imported into a new study with its full item wording, in the structure shown below.

Create a free account to collect responses

Already have one? Sign in and it opens straight into a new study.

Item wording for the PHQ-9 is available inside Folio Surveyor, subject to the instrument's licensing. The structure below (its sections, items and response scale) is what gets built for you.

The instrument

9 items

Each item is answered on this scale:

Not at allSeveral daysMore than half the daysNearly every day

Collect responses on the PHQ-9

Creating an account builds this study for you (the full wording of all 9 items, scoring, reverse-keyed items and subscale totals already wired up) and gives you a link to send participants.

Create a free account to collect responses

Already have one? Sign in and it opens straight into a new study.

← Back to the PHQ-9 reference page · Metadata and item wording are provided for research use; cite the original publication.