{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "R/P1Y", "bureauCode": ["029:15"], "contactPoint": {"@type": "vcard:Contact", "fn": "National Center for PTSD", "hasEmail": "mailto:ncptsd@va.gov"}, "description": "This dataset provides results for between-arm comparisons of continuous measures. Included is information on score differences, p-value for statistical test, and study-reported effect sizes. \n\nWhere possible, the between-arm standardized effect size was calculated, using Hedges\u2019 g. We calculated Hedges\u2019 g based on the following (in order of preference): 1) adjusted mean difference; 2) follow-up scores; 3) unadjusted mean difference; 4) change scores. For the calculated effect size, information on the basis for calculation is included along with measures of variance. Negative values for Hedges\u2019 g indicate a larger decrease (or lower follow-up score) in the first arm than in the second arm, while positive values indicate the reverse. \n\nEach comparison is on a separate row, and pairwise as well as omnibus (multi-arm) comparisons are included. There are also separate rows for each measure, time point and analysis type.", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://www.data.va.gov/api/views/tz36-rieh/rows.csv?accessType=DOWNLOAD", "mediaType": "text/csv"}, {"@type": "dcat:Distribution", "describedBy": "https://www.data.va.gov/api/views/tz36-rieh/columns.rdf", "describedByType": "application/rdf+xml", "downloadURL": "https://www.data.va.gov/api/views/tz36-rieh/rows.rdf?accessType=DOWNLOAD", "mediaType": "application/rdf+xml"}, {"@type": "dcat:Distribution", "describedBy": "https://www.data.va.gov/api/views/tz36-rieh/columns.json", "describedByType": "application/json", "downloadURL": "https://www.data.va.gov/api/views/tz36-rieh/rows.json?accessType=DOWNLOAD", "mediaType": "application/json"}, {"@type": "dcat:Distribution", "describedBy": "https://www.data.va.gov/api/views/tz36-rieh/columns.xml", "describedByType": "application/xml", "downloadURL": "https://www.data.va.gov/api/views/tz36-rieh/rows.xml?accessType=DOWNLOAD", "mediaType": "application/xml"}], "identifier": "https://www.data.va.gov/api/views/tz36-rieh", "issued": "2023-07-07", "keyword": ["ptsd-repository"], "landingPage": "https://www.data.va.gov/d/tz36-rieh", "language": ["en-US"], "modified": "2026-02-05", "programCode": ["029:000"], "publisher": {"@type": "org:Organization", "name": "National Center for PTSD"}, "rights": "All data is within the public domain and is currently available for download.", "theme": ["PTSD-Repository"], "title": "PTSD Dichotomous Outcomes Between Arms"}