The Development of Reasoning in Children with Normal and Defective Hearing was first published in 1950. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions.No. 24, Institute of Child Welfare Monograph SeriesThis important study will prove helpful to educators, psychologists, clinicians, and all workers with the hard-of-hearing and deaf. Various types of reasoning ability were measured in children whose experience was limited by defective hearing, by residence in an institution, or by both of these factors, and comparisons were made with children whose environment was normal in one or both aspects.Subjects for the study included 850 pupils in state schools for the deaf, in special day classes for the defective hearing, and in public schools. Three different reasoning tests were used, and the scores of matched groups are compared and analyzed.