The use of a traditional syndrome-classification system for aphasics is examined critically from the different perspectives of medicine and psychometrics. Medicine views syndromes as dichotomous (present or not present) and necessarily indicative of an underlying pathognomic state or process, and psychometrics sees performances as varying along a…

The Psychotic Behavior Rating Scale uses a factor analysis approach to aid in differential diagnosis of autism, schizophrenia, mental retardation, aphasia, and other severe handicaps. The scale is compared with five existing qualitatively developed instruments, noting similarities and dissimilarities among the various scales. (Author/JDD)

Language disorders in children are one of the most frequent causes of difficulties in communication, social interaction, learning and academic achievement. It has been estimated that over 5% of children present with some kind of language disorder. This volume illustrates the state of the art in neurogenic language disorders in children. The most…