Ahs. Chan et Aj. Courtney, REVISING AND VALIDATING THE RANDOM SEARCH MODEL FOR COMPETITIVE SEARCH, Perceptual and motor skills, 87(1), 1998, pp. 251-260
A random search model was fit to a total of 2592 visual search times o
n a single-target detection task. By using a competing homogeneous bac
kground and uniform stimulus material, specifying viewing distance, co
ntrolling the presentation of search task material, and eliminating so
me options for extreme search strategies, very high correlation coeffi
cients were found when a random search model was fit to both the indiv
idual data and to pooled data. A response time parameter was incorpora
ted into the traditional random-search model and very good predictions
of search performance were obtained.