Does Short-Term Practice Attenuate Initial Coding Differences?
Abstract
Three experiments that examined whether short-term practice would attenuate initial differences among coding conditions are reported. Experiment (Exp.) 1 showed that differences among coding conditions became less pronounced with practice for measures of response-time (RT) and accuracy. This was due primarily to a greater degree of improvement with achromatic shape-coding compared to color-coding. Exps. 2 and 3, which used a more difficult task, showed that for an identification task, practice generally improved RT and reduced differences among coding conditions. For a search task, practice enhanced RT with color-coding conditions, but impaired RT with shape-coding. This impairment presumably reflected fatigue effects induced by the most difficult coding condition. It was concluded that under certain task conditions, practice attenuated initial coding differences. These findings have important implications for the the design and application of different codes in visual displays where short-term versus long-term enhancement of performance is the major objective and where training costs are of concern. Canada.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1990
- Accession Number
- ADA227201
Entities
People
- Rebecca M. Jubis
Organizations
- DRDC Toronto