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Penrose, L. S. Mental Disease and Crime.
Raven, J. C. The R.E.C.I. Series of Perceptual Tests.
Miller, F. M., and raven, J. C. The Influence of Positional Factors on the Choice of Answers to Perceptual Intelligence Tests.
Raven, J. C, and waite, A. Experiments on Physically and Mentally Defective Children with Perceptual Tests.
Davidson, Marsh. Studies in the Application of Mental Tests to Psychotic Patients.
Stephenson, W. A Reply to Recent Criticisms of Intelligence Testing.
Lowenfeld, margaret. The World Pictures of Children.
1. Penrose, L. S. Mental Disease and Crime.—Statistics of crime and insanity in a number of different European countries are compared. It is concluded that there is a definite incompatibility between the development of mental health services and the need for accommodation in prisons. Attention to mental health may help to prevent the occurrence of serious crimes, particularly deliberate homicide. This investigation only presents an outline of the facts.
2. Raven, J. C. The R.E.C.I. Series of Perceptual Tests.—These tests have been described by the author in a previous communication. Children from four to fourteen in a small urban area and others were tested. The scores of adults who were tested suggested that the series would differentiate subjects over the age of fourteen into five classes according to whether a subject was mentally defective, dull, normal, bright or of university standing but would fail to differentiate between individuals within these groups. A revised series of sixty tests has been prepared on the basis of this survey.