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Over the ensuing years the scale has been subjected to a series of studies that have sought to examine its psychometric properties and its validity. The current paper reports on results from three of these studies, one of which looks at the factor structure of the items. The other two studies examine concurrent validity by looking at J-SOAP Scales 1 and 2 in relation to the Level of Service Inventory-Youth Version with: Youth Level of Service\/Case Management Inventory (YLS\/CMI) (R. D. Hoge &amp; D. A. Andrews, 1996) and other selected variables and discriminant validity by looking at the ability of J-SOAP scales to differentiate between juvenile sex offenders in the community and juvenile sex offenders in residential placement. The revision of the scale is discussed based on the research that has developed the scale and the research that has employed it.<\/jats:p>","DOI":"10.1177\/107906320501700103","type":"journal-article","created":{"date-parts":[[2008,2,27]],"date-time":"2008-02-27T19:40:23Z","timestamp":1204141223000},"page":"13-30","source":"Crossref","is-referenced-by-count":44,"title":["Factor Structure and Validation of the Juvenile Sex Offender Assessment Protocol (J-SOAP)"],"prefix":"10.1177","volume":"17","author":[{"given":"Sue","family":"Righthand","sequence":"first","affiliation":[{"name":"University of Maine, Orono, Maine"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert","family":"Prentky","sequence":"additional","affiliation":[{"name":"Justice Resource Institute, Bridgewater, Massachusetts"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Raymond","family":"Knight","sequence":"additional","affiliation":[{"name":"Brandeis University, Waltham, Massachusetts"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erika","family":"Carpenter","sequence":"additional","affiliation":[{"name":"University of California at Los Angeles, Los Angeles,\rCalifornia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeffrey E.","family":"Hecker","sequence":"additional","affiliation":[{"name":"University of Maine, Orono, Maine"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Douglas","family":"Nangle","sequence":"additional","affiliation":[{"name":"University of Maine, Orono, Maine"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2005,1,1]]},"reference":[{"key":"atypb1","volume-title":"Manual for the Early Assessment Risk List for Boys-Version 2 (EARL-208: Version 2)","author":"Augimeri, L.K.","year":"2001"},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.1177\/088626091006004004"},{"key":"atypb3","unstructured":"Barbaree, H.E., Hudson, S.M. & Seto, M.C. 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