{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T08:46:37Z","timestamp":1762505197622,"version":"3.41.0"},"reference-count":59,"publisher":"Cambridge University Press (CUP)","issue":"1","license":[{"start":{"date-parts":[[2006,12,13]],"date-time":"2006-12-13T00:00:00Z","timestamp":1165968000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Int Neuropsychol Soc"],"published-print":{"date-parts":[[2007,1]]},"abstract":"<jats:p>As currently defined, it is not clear whether Nonverbal Learning \nDisabilities (NLD) should be considered a matter of kind or magnitude \n(Meehl, 1995). The taxonicity of NLD, or the \ndegree to which it is best construed as discrete <jats:italic>versus<\/jats:italic> \ncontinuous, has not been investigated using methods devised for this \npurpose. Latent Class Analysis (LCA) is a method for finding subtypes of \nlatent classes from multivariate categorical data. This study represents \nan application of LCA on a sample of children and adolescents with spina \nbifida myelomeningocele (SBM) (<jats:italic>N<\/jats:italic> = 44), those presenting with \nfeatures of NLD (<jats:italic>N<\/jats:italic> = 28) but no medical condition, and control \nvolunteers (<jats:italic>N<\/jats:italic> = 44). The two-class solution provided evidence for \nthe presence of a taxon with an estimated base-rate in the SBM group of \n.57. Indicator validities (the conditional probabilities of indicator \nendorsement in each latent class) suggest a somewhat different priority \nfor defining NLD than is typically used by researchers investigating this \ndisorder. A high degree of correspondence between LCA classifications and \nthose based on a more conventional algorithm provided evidence for the \nvalidity of this approach. (<jats:italic>JINS<\/jats:italic>, 2007, <jats:italic>13<\/jats:italic>, \n50\u201358.)<\/jats:p>","DOI":"10.1017\/s1355617707070087","type":"journal-article","created":{"date-parts":[[2006,12,13]],"date-time":"2006-12-13T18:30:47Z","timestamp":1166034647000},"page":"50-58","source":"Crossref","is-referenced-by-count":21,"title":["Taxonicity of nonverbal learning disabilities in spina bifida"],"prefix":"10.1017","volume":"13","author":[{"given":"M. DOUGLAS","family":"RIS","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ROBERT T.","family":"AMMERMAN","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"NIELS","family":"WALLER","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"NICOLAY","family":"WALZ","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"SONYA","family":"OPPENHEIMER","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"TANYA MAINES","family":"BROWN","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"BENEDICTA G.","family":"ENRILE","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"KEITH OWEN","family":"YEATES","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2006,12,13]]},"reference":[{"key":"S1355617707070087_ref039","doi-asserted-by":"crossref","unstructured":"Pelletier, P.M. , Ahmad, S.A. , & Rourke, B.P. 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