Text Editing Performance As A Function Of Screen Size

A pilot study was performed to experimentally assess the implications of Cathode Ray Tubes (CRT) screen size and definition on text editing performance. The study manipulated line length (16, 32, and 64 characters displayed per line), window height (1, 4, 8, and 19 line text pages), and edit field location (text to be edited was located at the beginning, middle, or end of text messages) to measure effects on text editing performance as measured by edit field location time, editing time, and errors. Of these, text location time and location errors (as measured by vertical scroll reversals) were significantly influenced by line length and edit field location. Keywords: User computer interface, Human factors engineering, Soldier computer interface, Screen size, CRT information display, Text editing performance. (SDW).