ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)42979
CIS number 84-1883
ISSN - Serial title 0018-7208 - Human Factors
Year 1983
Convention or series no.
Author(s) Duchnicky R.L., Kolers P.A.
Title Readability of text scrolled on visual display terminals as a function of window size
Bibliographic information Dec. 1983, Vol.25, No.6, p.683-692. Illus. 16 ref.
Abstract 10 student subjects were tested to evaluate the readability of text as a function of 3 different line lengths, 2 different character densities and window heights of 1, 2, 3, 4 or 20 lines. Lines of full and two-thirds screen width were read 25% faster than lines of one-third screen width. Text of density 80 characters/line was read 30% faster than text in a format of 40 characters/line. Text in windows 4 lines high was read as efficiently as text in 20-line windows, and text in 1- or 2-line windows was read 9% more slowly than text in 20-line windows. Comprehension of the passages did not vary as a function of window size. Implications of the results for mixed text and graphics and for limited-capacity electronic displays are discussed.
Descriptors (primary) visual tasks; legibility; visual display terminals
Descriptors (secondary) ergonomic evaluation; human experiments
Document type D - Periodical articles
Subject(s) Lighting, colour and vision
Broad subject area(s)
Browse category(ies) Office work
Visual display terminals (VDTs)
Ergonomics