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Related Experiment Video

Updated: Jun 5, 2026

Computerized Adaptive Testing System of Functional Assessment of Stroke

Computerized Adaptive Testing System of Functional Assessment of Stroke

Published on: January 7, 2019

Internet-based self-assessment after the Tsunami: lessons learned.

Stefan Vetter¹, Astrid Rossegger, Thomas Elbert

¹Centre for Disaster and Military Psychiatry, University of Zurich, Militaerstrasse 8, Zurich, Switzerland. stefan.vetter@access.uzh.ch

BMC Public Health

|January 11, 2011

Summary

This summary is machine-generated.

An online psychological self-assessment (ONSET) helped Tsunami survivors screen for trauma and mental health needs. The tool reached more men than traditional methods, highlighting its unique outreach potential.

Related Experiment Videos

Last Updated: Jun 5, 2026

Computerized Adaptive Testing System of Functional Assessment of Stroke

Computerized Adaptive Testing System of Functional Assessment of Stroke

Published on: January 7, 2019

Area of Science:

Disaster psychology
Online mental health screening
Public health informatics

Background:

Developed post-2004 Tsunami, the online psychological self-assessment (ONSET) provided a screening tool for survivors.
Aimed to identify individuals needing mental health care after a large-scale disaster.

Purpose of the Study:

To report lessons learned from using an internet-based self-screening instrument after a major disaster.
To discuss the outreach and usefulness of the ONSET tool.

Main Methods:

Anonymous data collection with user consent (88% agreement).
Stratified analyses based on exposure levels were performed.
2,914 adult users consented to data analysis.

Main Results:

Nearly 75% of users completed the ONSET within the first four weeks.
41% of users reported direct Tsunami exposure.
Direct Tsunami exposure, injuries, and family member casualties correlated with higher PTSD symptoms.

Conclusions:

ONSET facilitated self-assessment for potential mental health needs among disaster-affected individuals.
The online instrument reached a demographic (more men) not typically engaged by conventional public mental health strategies.
Internet-based tools offer a valuable complementary approach to traditional mental health outreach in disaster settings.