Anti-Bullying app shows promise in school trial

NCT ID NCT05572398

Completed Knowledge-focused Sponsor: Klein Buendel, Inc. Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a mobile web app version of the STAC bullying intervention in 613 middle school students across four states. The app teaches students techniques to intervene when they see bullying. Researchers measured students' knowledge, confidence, and how often they used the strategies, as well as bullying victimization rates.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: STAC-T mobile web app (behavioral intervention)
What this could lead to: If successful, this could provide a low-cost, scalable way to reduce bullying in schools.
What could go wrong: This is a completed feasibility and efficacy trial. Results may not generalize beyond the four states studied, and the app's impact on real-world bullying may be limited.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Bullying Psychological Well-Being

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ADOLESCENT BULLYING MENTAL HEALTH TECHNOLOGY

Contacts and locations

Locations

Boise State University

Boise, Idaho, 83725-1135, United States
University of Mississippi

University, Mississippi, 38677-1848, United States

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