Wise Intervention for Reducing Aggressive Behaviors and Promoting Prosocial Behaviors Toward LGB-TNB Individuals

NCT07212283 | Recruiting

• 1 other identifier: ETK-90/24-25
• Study Type: interventional
• Target: 1,000
• Locations: 1 country
• Sites: 1

Brief Summary

This study evaluates the effectiveness of a wise Intervention to reduce aggressive behaviors and promote prosocial behaviors toward LGB-TNB individuals among Spanish adolescents. Half of the participants will receive the experimental intervention, while the other half will receive a control intervention.

Conditions

Aggression; Adolescence

Keywords

Adolescence; LGBTQ; Aggression; Prosocial Behavior; Wise Intervention

Outcome Measures

Primary Outcomes (4)

• Change from baseline in aggression scores toward LGB-TNB individuals, assessed using an adaptation of the Spanish version (Orue et al., 2018) of the Homophobic Bullying Scale (Prati, 2012).

  It consists of seven items that ask frequency with wich participants have engaged in specific aggressive behavior toward LGB-TNB individuals. Five response categories are provided using a Likert-type response scale, ranging from 1 (never) to 5 (daily).

  Assessments were conducted at baseline and at 3, 6, and 9 months.

• Change from baseline in online aggression scores toward LGB-TNB individuals, assessed using the Technology-Facilitated Gender- and Sexuality-Based violence (TFGSV; Martínez-Bacaicoa et al., 2023).

  It consists of eight items that ask frequency with wich participants have engaged in online aggressive behavior toward LGB-TNB individuals. Five response categories are provided using a Likert-type response scale, ranging from 1 (never) to 5 (daily).

  Assessments were conducted at baseline and at 3, 6, and 9 months.

• Change from baseline in prosocial behavior scores toward LGB-TNB individuals through an ad hoc measure.

  It consists of one item in which participants were asked to select all the behaviors they engaged in after witnessing an aggression.

  Assessments were conducted at baseline and at 3, 6, and 9 months.

• Change from baseline in bystander intention scores when witnessing aggressive behavior toward LGB-TNB individuals.

  This measure evaluate bystander intentions in response to LGB-TNB aggressions, through different scenarios. After reading the scenarios, participants answered five items that evaluated possible courses of action to take in response to the aggression.

  Assessments were conducted at baseline, immediately after the intervention, and at 3, 6, and 9 months.

Secondary Outcomes (8)

• Change from baseline in moral disengagement scores, assessed using the mechanisms of moral disengagement described by Bandura (2016) and based on studies with similar characteristics (Martínez-Bacaicoa et al., 2024).

  Assessments were conducted at baseline and at 3, 6, and 9 months.

• Change from baseline in justice sensitivity scores, assessed using the Justice Sensitivity Inventory (Schmitt et al., 2010).

  Assessments were conducted at baseline and at 3, 6, and 9 months.

• Change from baseline in behaviors supporting LGB-TNB individuals, assessed using the LGBT-Affirming Behavior questionnaire (Poteat, 2015).

  Assessments were conducted at baseline and at 3, 6, and 9 months.

• Change from baseline in microaggression scores toward LGB-TNB individuals, assessed using the Sexual Orientation Microaggression Scale (SOMS-P; Botor & Tuliao, 2025) and the Gender Identity Microaggression Scale (GIMS-P; Botor & Tuliao, 2025).

  Assessments were conducted at baseline and at 3, 6, and 9 months.

• Change from baseline in offline perpetration scores, assessed using the Spanish adaptation (Ortega-Ruiz et al., 2016) of the European Bullying Intervention Project Questionnaire (Brighi et al., 2012).

  Assessments were conducted at baseline and at 3, 6, and 9 months.

Study Arms (2)

Values alignment wise intervention

ACTIVE COMPARATOR

Behavioral: Values alignment wise intervention

Wise Intervention LGB-TNB

EXPERIMENTAL

Behavioral: Wise Intervention LGB-TNB

Interventions

Wise Intervention LGB-TNB BEHAVIORAL

The intervention will be designed to reduce aggressive behaviors based on sexual orientation and gender identity and to promote prosocial behaviors toward these individuals. This intervention will include three components: (1) reading scientific studies about people's ability to change. In addition, they will read other studies about how thoughts and emotions influence behavior through brain pathways, and that these pathways can be modified under certain circumstances; (2) reading testimonials that support the idea that people can change. These testimonials include accounts of people who were victims or perpetrators based on sexual orientation and gender identity, including important components of empathy and prosocial behaviors toward the victims. To give credibility to the intervention, they will be informed that these stories were written by other young people who previously participated; and (3) self-persuasion exercises that involve an active commitment to change.

Wise Intervention LGB-TNB

Values alignment wise intervention BEHAVIORAL

This intervention will be based on the same strategies as the experimental intervention, but it will not address aspects related to prosocial behaviors or aggression toward LGB-TNB individuals; instead, it will be applied to improve adolescents' eating habits.

Values alignment wise intervention

Eligibility Criteria

• Age: 14 Years - 18 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Informed consent by the adolescents and their families.
• To be fluent in Spanish and/or Euskera.

You may not qualify if:

• Lack of permission by families and the adolescent.
• Lack of understanding of the instructions.

Sponsors & Collaborators

• University of Deusto: lead

Study Sites (1)

Nerea

Bilbao, BIZKAIA, 48007, Spain

RECRUITING

MeSH Terms

Conditions

Aggression; Altruism

Condition Hierarchy (Ancestors)

Aberrant Motor Behavior in Dementia; Behavioral Symptoms; Behavior; Social Behavior

Central Study Contacts

Nerea Cortazar Enciondo, PhD

CONTACT

944139003; nerea.cortazar@deusto.es

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Masking Details: Allocation will be concealed to the participants and teachers. Assessment will be done online through self-reports.
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal investigator

Model Details: A randomized controlled trial with two groups will be used. Randomization will be done by clusters, using the classroom as the unit. First, the schools will be selected according to their characteristics. Then, half of the participants will be assigned to the experimental intervention (condition 1) and the other half to the control intervention (condition 2) in parallel for the duration of the study.

Study Record Dates

• First Submitted: September 30, 2025
• First Posted: October 8, 2025
• Study Start: September 18, 2025
• Primary Completion (Estimated): June 1, 2026
• Study Completion (Estimated): June 1, 2026
• Last Updated: May 1, 2026

Record last verified: 2026-04

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, ICF
• Time Frame: The study protocol and informed consent protocol will be published at clinicaltrials.org. Data will be available at OSF when the results are published.
• Access Criteria: Public

Locations

ES (1)