EFFECT OF FORMAT AND DETAIL OF JOB PERFORMANCE AIDS IN PERFORMING SIMULATED TROUBLESHOOTING TASKS.
Abstract
The effects of performance aid format, performance aid detail, and subject aptitude on the performance of paper and pencil data flow analysis tasks were measured. Sixteen subjects were used in a 2 x 2 x 2 design. Eight of these subjects scored between the 75th and 95th percentiles on the electronic aptitude index of the Airman Qualifying Exam, the other eight, between the 40th and 60th percentiles. Each subject received approximately 30 hours of training and practice, following which he was tested at one of the two levels of detail. Each subject was tested for 9 hours with aids in the block diagram format and for 9 hours with aids in the list structure format. Order of testing was counterbalanced across subjects. Criterion measures were: 1) number of problems attempted; 2) percentage of errorless localizations: 3) number of localization errors per problem; 4) number of localization errors of exclusion per problem, and; 5) percentage of errorless isolations. Subject aptitude was found to have the greatest effect on the accuracy with which subjects performed both localization and isolation tasks. Level of detail had the greatest effect on their speed (low level of detail subjects solved nearly twice as many problems as high level of detail subjects.) Performance was better with the diagrams than with the list structures. (Authur)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1965
- Accession Number
- AD0629992
Entities
People
- Thomas K. Elliott