Word: pers
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Dates: during 1950-1959
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Working retrospectively, he found that if the table had been applied when these boys were six years old it would have predicted that 92 per cent of them were destined to become delinquents...
...factors with subcategories (see box). The scores for each subcategory represent the percentage of delinquents among the 1,000 cases of Unraveling Juvenile Delinquency who fell into the particular subcategory. For example, if a particular child has been harshly disciplined by his father, he is scored 72.5, because 72.5 per cent of the boys in the study whose fathers were always or sometimes over-strict in their discipline, were found to be delinquent. If a child scores 300 or more in the Social Prediction Table, his chances of becoming a delinquent are high...
...group of 100 Jewish boys confined in the Hawthorne-Cedar Knolls School in New York State, with the purpose of determining the extent to which it would have been possible, years earlier, to have identified them accurately as potentially serious delinquents. Black and Mis Glick ascertained that 91 per cent of the group would have been correctly spotted by the test...
...already showing behavioral difficulties, those who are true delinquents from those whose maladapted behavior is temporary. The SPT showed that among a representative group of 100 boys, included originally in a research project called the Cambridge-Somerville Youth Study, it would again have been possible to identify accurately 91 per cent of all the boys as either potential delinquents or as non-delinquents...
...discriminative potential of the SPT was found to be considerably greater than that of three clinicians (a psychiatrist, psychologist, and criminologist who had been initially charged with selecting the boys for the Cambridge-Somerville Youth Study. Thompson reported that the clinicians had correctly identified only 65 per cent in comparison with 91 per cent correctly identified...