Accuracy of Information Assimilation from Updated Alpha-Numeric Displays.
Abstract
In a recently completed study on the assimilation of alpha-numeric information (Hammer and Ringel, 1964), subjects were required to locate updated information by comparing undated charts with hard copy 'history'. The updates were size coded in half the charts presented and uncoded in the remaining half. While amount of time taken to locate updates was the principal dependent variable, the study yielded the following findings concerning errors: (1) Two types of error were found, errors of omission and errors of commission (in the ratio of three to one). (2) Errors were reduced by half when coded updates were used. The low frequency of errors, however, precluded a more detailed analysis of the data. It was felt that a more stressful experimental task might yield more information on how accuracy and error scores are affected by coding, amount of information presented, and amount of information updated. Accordingly, the present experiment was designed to provide this information. An additional purpose was to determine if the effects of the independent variables on errors were similar to those found in a study on the assimilation of symbolic information (Ringel and Vicino, 1964).
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1965
- Accession Number
- ADA079244
Entities
People
- C. H. Hammer