It has been found (O'Connor, 1951) that certain psychological tests provide a means of predicting the amount of emotional instability in high-grade defectives, when the latter quality is rated by psychiatrists acquainted with the patients. The psychological tests were of primary suggestibility, general locomotor coordination, and persistence. The multiple correlation of the results of these tes...

or almost impossible to find vacancies in Certified Institutions for low grade or troublesome defectives. Mental Hospitals and Public Assistance Institutions are unwillingly obliged to receive these cases. Local Authorities are well aware of the harm and hardships which ensue from the retention of this type of patient in Public Assistance Institutions. The Board of Control require that Mental D...

almost directly after the Mental Deficiency Act came into force in 1914. One of their main objects was the co-ordination of all public and voluntary work undertaken for defectives in their own homes, throughout the area, covered by a Local Authority under the Mental Deficiency Act, i.e., a County or County Borough. The Constitution of these Associations varies according to Local conditions but ...

Group testing is a frequently used tool to identify an unknown set of defective (positive) elements out of a large collection of elements by testing subsets (pools) for the presence of defectives. Various models have been studied in the literature. The most studied case concerns only two types (defective and non-defective) of elements in the given collection. This paper studies a novel and natu...

Ascertainment The ascertainment rate of defectives reported to Local Authorities was?at the beginning of 1937?2.88 per 1,000 of the population. (It will be remembered that the estimate given by the Wood Committee, of defectives for whom Local Authorities are, or may at anv time become, responsible was 4.52 per 1,000.) To the usual table giving the ascertainment rate of each individual Local Aut...

Education of Defectives in the Public Schools. By Meta L. Anderson. Yonkers, N. Y.: World Book Company, 1917. Pp. xvii+104. Miss Anderson has set forth, in a thoroughly practical way, the methods used by teachers of defectives in the more progressive American cities. A serious weakness in her book, is that she ignores nearly everything that has been accomplished outside of Newark, N. J., Vinela...