FIVE HUNDRED SUBJECTS TESTED AND RETESTED FOR FIFTY TRIALS EACH ON THE NAVY RADIUM PLAQUE ADAPTOMETER.
Abstract
Over five hundred men were tested and retested for fifty trials each on the Navy Radium Plaque Adaptometer at the U. S. Submarine Base, New London, Connecticut by pharmacists in training as instructors in the use of this adaptometer. The subjects were personnel of the New London Submarine Base. It was found that the following scores could be successfully used as critical scores. (1) 10 out of 10. 16 out of 20 or better equals 'PASS'. (2) 15 out of 20 or less equals 'FAIL'. It was found that the addition of thirty trials giving a total of fifty trials would not improve materially the classification at a single sitting. It was recommended that these scores be used for classification of the two groups, 'pass' and 'fail'. The statistical analysis of scores of this type show that a doubtful group cannot be accurately classified in as much as fifty trials. For this reason, the doubtful or intermediate category is recommended for omission. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 08, 1944
- Accession Number
- AD0622217
Entities
People
- R. H. Peckham
- W. S. Verplanck