2000
Subgroups of Children With Autism by Cluster Analysis: A Longitudinal Examination
STEVENS M, FEIN D, DUNN M, ALLEN D, WATERHOUSE L, FEINSTEIN C, RAPIN I. Subgroups of Children With Autism by Cluster Analysis: A Longitudinal Examination. Journal Of The American Academy Of Child & Adolescent Psychiatry 2000, 39: 346-352. PMID: 10714055, DOI: 10.1097/00004583-200003000-00017.Peer-Reviewed Original ResearchConceptsPreschool ageSevere language impairmentSubgroup of childrenSchool-aged childrenNonverbal abilityCognitive functioningLanguage impairmentAutistic symptomsHigher IQLongitudinal examinationSocial abnormalitiesSame childrenDifferential outcomesSubgroup membershipBehavioral scoresFunctioningAutismChildrenIQCluster analysisHigh groupRelationshipImpairmentDifferent levelsLanguage
1999
Subtypes of Pervasive Developmental Disorder: Clinical Characteristics
Fein D, Stevens M, Dunn M, Waterhouse L, Allen D, Rapin I, Feinstein C. Subtypes of Pervasive Developmental Disorder: Clinical Characteristics. Child Neuropsychology 1999, 5: 1-23. DOI: 10.1076/chin.5.1.1.7075.Peer-Reviewed Original ResearchPervasive developmental disorderDevelopmental disordersDevelopmental language disorderOverall cognitive levelSocial developmental levelSpecific behavioral manifestationsLanguage disordersPDD childrenCognitive levelDevelopmental trajectoriesDevelopmental levelLower IQSocial abnormalitiesBehavioral manifestationsPreschool childrenSchool ageSymptom areasChildrenDisordersUsable algorithmIQIndividualsFindingsDistinctionCurrent analysis