Violence Clinical Trial
Official title:
A Stage-Based Expert System for Teen Dating Violence Prevention
Male-to-female intimate partner violence accounts for 26% of violence-related injuries in women presenting in hospital emergency departments and 33% of all female homicides. Adolescence provides an excellent "window of opportunity" for the prevention of intimate partner violence. Patterns of relating in intimate relationships are still relatively undifferentiated and open to influence. However, the evidence supporting traditional, school-based programs for the prevention of teen dating violence is mixed. A major problem with existing programs is that they are "one size fits all," making it difficult to meet the diverse needs of students—boys and girls, individuals who are dating and those who are not, individuals who have experienced dating violence as a victim, perpetrator, or both, and those who have not. Perhaps most importantly, these interventions neglect individual differences in readiness to use healthy, non-violent ways of relating to stay violence-free. In Phase I the objective was to use expert system technology to integrate best practices for teen dating violence prevention with the Transtheoretical Model of Behavior Change (TTM), the "stage model," to develop an interactive, multimedia computer-administered change program that delivers individualized intervention sessions and exercises tailored to stage of change and other individual characteristics. In Phase II, the objective was to complete development of the intervention package and assess its efficacy in a randomized clinical trial involving 3,901 teens from 20 Rhode Island high schools randomly assigned to intervention or comparison. Among youth exposed to risk for dating violence, efficacy was assessed by comparing the intervention and comparison groups on dating violence perpetration and victimization at follow-up. Among youth not exposed to risk for dating violence, efficacy was assessed by comparing intervention and comparison on peer violence perpetration and victimization.
Status | Completed |
Enrollment | 3901 |
Est. completion date | December 2010 |
Est. primary completion date | December 2010 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | N/A and older |
Eligibility |
Inclusion Criteria: - Attending one of 20 participating schools - In grade 9, 10, or 11 Exclusion Criteria: - Parent submitted opt-out form |
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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Pro-Change Behavior Systems |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Number of Participants Perpetrating Physical Peer Violence During Follow-up | Among participants not exposed to risk for dating violence, an 18-item measure assessed three types of peer violence perpetration and victimization (Levesque, 2007). Alphas for the three 3-item perpetrator scales are: .89 for emotional mistreatment, .89 for physical violence, and .94 for sexual coercion. At follow-up, in the spring and fall of 2010, the measure assessed peer violence experienced and perpetrated since January 1, 2010. Given the hierarchical structure of the perpetration measure, the physical violence and sexual coercion scales were combined to represent physical perpetration. One or more incidents of physical perpetration during the period in question were coded as "yes," and no incidents coded as "no". | One year | No |
Other | Number of Participants Experiencing Physical Peer Violence During Follow-up | See above. Cronbach's Alphas for the three victimization scales were .89 for emotional mistreatment, .89 for physical violence, and .93 for sexual coercion. One or more incidents of physical peer violence victimization during the period in question were coded as "yes," and no incidents coded as "no"). | One year | No |
Other | Number of Participants Perpetrating Emotional Peer Violence During Follow-up | See above. One or more incidents of peer emotional mistreatment perpetrated during the period in question were coded as "yes," and no incidents coded as "no"). | One year | No |
Other | Number of Participants Experiencing Emotional Peer Violence During Follow-up | See above. One or more incidents of peer emotional mistreatment experienced during the period in question were coded as "yes," and no incidents coded as "no"). | One year | No |
Primary | Number of Participants Perpetrating Physical Dating Violence During Follow-up | A 30-item measure assessing five types of dating violence perpetration and victimization was developed to meet specific needs of this research (Levesque, 2007). Alphas for the five 3-item perpetrator scales are: .88 for emotional mistreatment, .87 for controlling behavior, .91 for threats, .92 for physical violence, and .94 for sexual coercion. At follow-up, in the spring and fall of 2010, the measure assessed dating violence perpetrated and experienced since January 1, 2010. Given the hierarchical structure of the perpetration measure, the emotional mistreatment and controlling behavior scales were combined to represent emotional dating violence perpetration, and the threats, physical violence, and sexual coercion scales were combined to represent physical perpetration. Given extreme non-normal distributions, the two measures were then dichotomized. One or more incidents of physical perpetration during the period in question were coded as "yes," and no incidents as "no". | One year | No |
Secondary | Number of Participants Experiencing Physical Dating Violence During Follow-up | See above. Cronbach's Alphas for the five victimization scales were .87 for emotional mistreatment, .86 for controlling behavior, .83 for threats, .76 for physical violence, and .90 for sexual coercion. One or more incidents of physical dating violence victimization during the period in question were coded as "yes," and no incidents coded as "no"). | One year | No |
Secondary | Number of Participants Perpetrating Emotional Dating Violence During Follow-up | See above.One or more incidents of emotional dating violence perpetration during the period in question were coded as "yes," and no incidents coded as "no"). | One year | No |
Secondary | Number of Participants Experiencing Emotional Dating Violence During Follow-up | See above.One or more incidents of emotional dating violence victimization during the period in question were coded as "yes," and no incidents coded as "no"). | One year | No |
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