Accession Number : ADA112926

Title :   Digraph Frequency Effects in Skilled Typing.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA CENTER FOR HUMAN INFORMATION PROCESSING

Personal Author(s) : Grudin,Jonathan T ; Larochelle,Serge

PDF Url : ADA112926

Report Date : Feb 1982

Pagination or Media Count : 35

Abstract : These studies use both discontinuous and continuous typing paradigms in investigating digraph frequency effects in skilled typing. Previous studies that controlled for hand use showed no digraph frequency effects. With more rigorous controls we found very reliable digraph frequency effects, suggesting that, with experience, typists develop multi-character response units. Videotape analysis indicated at least one way such response units can potentially coordinate and facilitate performance. (Author)

Descriptors :   *Performance(Human), *Motor reactions, *Skills, typewriters, Keyboards, Operators(Personnel), Words(Language), Frequency, Time intervals, Sequences, Fingers, Efficiency, Test methods

Subject Categories : Psychology
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE