Mental aspects of delinquency / by Truman Lee Kelley.

  • Truman Lee Kelley
Date:
[1917]
Catalogue details

Licence: Public Domain Mark

Credit: Mental aspects of delinquency / by Truman Lee Kelley. Source: Wellcome Collection.

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    tism, the strength of vision, the difference in strength between the two eyes and incidental facts that were elicited in response to questions. As this recommendation was turned over to the Superintendent of the Institution for his use, and as the amount of eye defect was so great that it was feared it would appall, rather than stimulate, the authorities, the writer made a very conservative estimate. Percentage needing further exam- ination recorded in the summaries. : Hearing: A whisper test, followed in case of failure by a watch test, was made, and a score of (0) or (1) recorded for each individual, the former indicating the need of further exam- ination, This test was conducted under unfavorable circum- stances, and only those who were quite defective were discov- ered. The percentages needing further examination is recorded. Nose and Throat: The teeth, palate and throat were exam- ined hastily, the chief effort being to discover whether the child had difficulty in breathing through his nose. One nostril at a time was closed and the boy was told to breathe through the other. If the labor of breathing was marked, a (0) was ent- percentage of such is recorded in the summaries. Psycho-motor Tests. Strength of Grip: Right hand and left hand tested separ- ately by means of a Smedley adjustable dynamometer. After testing about one-half of the white and Mexican boys, it was discovered that the dynamometer was registering too low. It is unknown how long this condition had held, but at the time of the discovery, there was an error of a little over a kilogram. It was estimated that one kilogram should be added to the recorded records of the white and Mexican boys to obtain the most reliable estimate of the strength of grip of the boys. This has accordingly been done before comparisons have been made. The mean is used as the measure of central tendency. Handedness: Record is made as to whether the boys were right-handed or left-handed. The per cent. of left-handedness for each group is recorded. Tapping: A tapping board, with electric counter, was the
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