1 Introduction: Disease, Disability, and Psychodiagnostic Concepts in Childhood.- 2 Childhood Psychosis: A Historical Review.- 3 Specific Language Dysfunctioning in Children: A Historical Overview.- 4 Deviant and Normal Social Development.- 5 Normal Social Development.- 6 Psycholinguistic Development: Functioning and Dysfunctioning.- 7 Disordered Thinking.- 8 Diagnosis and Evaluation of Disordered Thought and Language.- 9 The Psychological Testing of Dysphasic and Psychotic Children.- Epilogue.- References and Bibliography.