M3 Screen - WhatsMyM3


The M3 Screen is a brief symptom checklist for potential mood and anxiety disorder symptoms. It is designed to assess your risk of depression, bipolar and anxiety disorders (including PTSD). The checklist only takes about 3 minutes to complete, after which you receive a personalised confidential report outlining how much burden these symptoms might be causing you. These results can then be easily printed, emailed or saved in a Microsoft HealthVault account. You can also record your progress with the M3 Monitor, a tracking form for assessing progress and potential side-effects over time. Users are encouraged to share their results with their doctor. A mobile version of the M3 screen is available for iPhone/iPod Touch users and Android users.

Service URL:
Agency Responsible:
M3 Information.


Website. Also available as a mobile app
Intervention Type:
Educational (primarily educational material or psychoeducation).
Course Length:
Short (less than 1 module or equivalent).
Support Option:
Automated only.

Target Audience

Primary Categories:
Depression, Bipolar Disorder and Generalised anxiety disorder. Also for PTSD
Target Audience:
English and Spanish.


Free. Online tool is free but mobile app can only be downloaded for a fee
Open: No registration required.
Contact Details:


Research evidence

Research Trials:
Research RCTs:
Outcome Summary:

The feasibility and validity of the M3 Screen has been assessed in an open trial, which found that it demonstrates utility as a valid, efficient, and feasible tool for screening multiple common mental health conditions (depression, anxiety, bipolar, PTSD). As a screen for any psychiatric disorder, sensitivity was 0.83 and specificity was 0.76. The depression module had a sensitivity of 0.84 and a specificity of 0.80; the bipolar module had a sensitivity of 0.88, and a specificity of 0.70; the anxiety module had a sensitivity of 0.82 and a specificity of 0.78; and the PTSD module had a sensitivity of 0.88 and a specificity of 0.76. The psychometric properties of the M3 Screen compare favourably with those of currently used single-disorder screening tools. Participants and clinicians both found the screening tool easy to use, quick, and clinically helpful.

Recommended rating, reviewer 1:

There is evidence that the site might work. More conclusive studies are needed.
Recommended rating, reviewer 2:

There is evidence that the site might work. More conclusive studies are needed.

Read more about Beacon's Smiley Rating System.

Research paper citations

  1. Gaynes, B. N., DeVeaugh-Geiss, J., Weir, S., Gu, H., MacPherson, C., Schulberg, H. C., Culpepper, L., Rubinow, D. R. (2010). Feasibility and diagnostic validity of the M-3 checklist: a brief, self-rated screen for depressive, bipolar, anxiety, and post-traumatic stress disorders in primary care. Annals of Family Medicine, 8(2), 160-169.

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Last Updated: October 22nd 2012