protocolSection identificationModule nctId: NCT06313736, orgStudyIdInfo id: STU00220591_shortening, secondaryIdInfos id: 2T32MH115882-06A1, type: NIH, link: https://reporter.nih.gov/quickSearch/2T32MH115882-06A1, briefTitle: What SSI Duration is Most Effective? An Online Experiment With American Adults, statusModule overallStatus: ACTIVE_NOT_RECRUITING, startDateStruct date: 2024-03-20, primaryCompletionDateStruct date: 2024-05, completionDateStruct date: 2024-05, studyFirstPostDateStruct date: 2024-03-15, lastUpdatePostDateStruct date: 2024-04-11, sponsorCollaboratorsModule leadSponsor name: Northwestern University, class: OTHER, collaborators name: National Institute of Mental Health (NIMH), descriptionModule briefSummary: In a previous study (https://osf.io/qdznc), the research team found that an 8-minute version of a single-session intervention for loneliness was more effective than a 23-minute version of it. The present work aims to further explore the relationship between intervention duration and effectiveness.In this online trial, participants will be randomized to a 15-minute single-session depression intervention called the Action Brings Change (ABC) Program, a 10-minute version of it, a 6-minute version of it, or a 2-minute version of it. The main analysis will evaluate how change in depressive symptoms over eight weeks differs across conditions., conditionsModule conditions: Depression, designModule studyType: INTERVENTIONAL, phases: NA, designInfo allocation: RANDOMIZED, interventionModel: PARALLEL, interventionModelDescription: Participants will be assigned to one of four different conditions., primaryPurpose: TREATMENT, maskingInfo masking: DOUBLE, maskingDescription: Participants will be aware that they will be assigned to an intervention designed to help them with depressive symptoms. They will know that the study compares multiple interventions but will not know to which arm they have been assigned. Additionally, the measures will be self-administered, so there is no scope for evaluator bias. There will be no interaction between participants and investigators., whoMasked: PARTICIPANT, whoMasked: INVESTIGATOR, enrollmentInfo count: 1100, type: ESTIMATED, armsInterventionsModule interventions name: Action Brings Change Project (15-minute adult version), interventions name: Action Brings Change Project (10-minute adult version), interventions name: Action Brings Change Project (6-minute adult version), interventions name: Action Brings Change Project (2-minute adult version), outcomesModule primaryOutcomes measure: Change in Patient Health Questionnaire-8 at 8 weeks (PHQ-8; Kroenke et al., 2009), secondaryOutcomes measure: Change in Beck Hopelessness Scale at 8 weeks (BHS-4; Perczel Forintos et al., 2013), secondaryOutcomes measure: Change in Beck Hopelessness Scale - 4-item at post-intervention, secondaryOutcomes measure: Change in UCLA Loneliness Scale 3-item version at 8-week follow-up (ULS-3; Hughes et al., 2004), secondaryOutcomes measure: Presence of an "Aha! moment" at post-intervention, secondaryOutcomes measure: Presence of an "Aha! moment" at 8 weeks post-intervention, secondaryOutcomes measure: Significance of the "Aha! moment" at immediately post-intervention, secondaryOutcomes measure: Significance of the "Aha! moment" at 8 weeks post-intervention, secondaryOutcomes measure: Change in Frequency of actions and thoughts scale at post-test at 8 weeks post-intervention (FATS; Terides et al., 2016), secondaryOutcomes measure: Expected improvement at post-intervention (from the Credibility / Expectancy Questionnaire; Devilly, 2004), secondaryOutcomes measure: Self-reported improvement at 8-weeks post-intervention (adapted from the Credibility/ Expectancy Questionnaire; Devilly, 2004), secondaryOutcomes measure: Intervention satisfaction star rating at post-intervention, secondaryOutcomes measure: Intervention satisfaction star rating at 8 week follow-up, eligibilityModule sex: ALL, minimumAge: 18 Years, stdAges: ADULT, stdAges: OLDER_ADULT, contactsLocationsModule locations facility: Northwestern University Medical Social Sciences, city: Chicago, state: Illinois, zip: 60611, country: United States, geoPoint lat: 41.85003, lon: -87.65005, documentSection largeDocumentModule largeDocs typeAbbrev: Prot_SAP, hasProtocol: True, hasSap: True, hasIcf: False, label: Study Protocol and Statistical Analysis Plan, date: 2024-03-17, uploadDate: 2024-03-17T16:12, filename: Prot_SAP_000.pdf, size: 81821, hasResults: False