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There was an association between treatment dropout and parental scores on a personality screening tool relating to their impulsivity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions &amp; Implications<\/jats:title><jats:p>Variables identified as predictors of Lidcombe Program treatment outcome were statistically significant, but not clinically significant. They did not account for a clinically substantive portion of treatment outcomes. Findings about parental impulsivity and their relationship with intervention drop\u2010out require replication with prospective methods and comprehensive assessment of parent psychological status. This is particularly important because parents are involved in conducting all early interventions.<\/jats:p><\/jats:sec><jats:sec><jats:label\/><jats:p><jats:boxed-text content-type=\"box\" position=\"anchor\"><jats:sec><jats:title>What this paper adds<\/jats:title><jats:sec><jats:title>What is already known on the subject<\/jats:title><jats:p>Information is available about what predicts Lidcombe Program treatment time, but nothing is known about what predicts Lidcombe Program treatment outcome.<\/jats:p><\/jats:sec><jats:sec><jats:title>What this paper adds to existing knowledge<\/jats:title><jats:p>There are predictors of Lidcombe Program treatment outcome that are statistically significant, but none are clinically significant.<\/jats:p><\/jats:sec><jats:sec><jats:title>What are the potential or actual clinical implications of this work?<\/jats:title><jats:p>Clinicians can tell parents that nothing has been found that can assist with making prognostic indications about treatment outcome for their children.<\/jats:p><\/jats:sec><\/jats:sec><\/jats:boxed-text><\/jats:p><\/jats:sec>","DOI":"10.1111\/1460-6984.12586","type":"journal-article","created":{"date-parts":[[2020,11,30]],"date-time":"2020-11-30T06:30:24Z","timestamp":1606717824000},"page":"102-115","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Predictors of Lidcombe Program treatment dropout and outcome for early stuttering"],"prefix":"10.1111","volume":"56","author":[{"given":"Veronica","family":"Park","sequence":"first","affiliation":[{"name":"Australian Stuttering Research Centre The University of Sydney  Lidcombe NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2629-2390","authenticated-orcid":false,"given":"Mark","family":"Onslow","sequence":"additional","affiliation":[{"name":"Australian Stuttering Research Centre The University of Sydney  Lidcombe NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robyn","family":"Lowe","sequence":"additional","affiliation":[{"name":"Australian Stuttering Research Centre The University of Sydney  Lidcombe NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mark","family":"Jones","sequence":"additional","affiliation":[{"name":"School of Population Health The University of Queensland, Brisbane  QLD Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sue","family":"O'Brian","sequence":"additional","affiliation":[{"name":"Australian Stuttering Research Centre The University of Sydney  Lidcombe NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ann","family":"Packman","sequence":"additional","affiliation":[{"name":"Australian Stuttering Research Centre The University of Sydney  Lidcombe NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ross","family":"Menzies","sequence":"additional","affiliation":[{"name":"Australian Stuttering Research Centre The University of Sydney  Lidcombe NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Susan","family":"Block","sequence":"additional","affiliation":[{"name":"School of Allied Health La Trobe University, Melbourne  VIC Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Linda","family":"Wilson","sequence":"additional","affiliation":[{"name":"School of Community Health Charles Sturt University, Albury\/Wadonga  NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elisabeth","family":"Harrison","sequence":"additional","affiliation":[{"name":"Department of Linguistics Macquarie University  Macquarie Park NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7043-7086","authenticated-orcid":false,"given":"Sally","family":"Hewat","sequence":"additional","affiliation":[{"name":"School of Humanities and Social Science The University of Newcastle  Newcastle NSW Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2020,11,29]]},"reference":[{"key":"e_1_2_8_2_1","volume-title":"Manual for the ASEBA Preschool Forms and Profiles","author":"Achenbach T. 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