Signal detectability theory applied to conceptual discrimination
Psychonomic SciencePublished 1 June 1967Open access
Z. Joseph Ulehla, Leslie Canges, Frances Wackwitz
Citations11
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Abstract
Signal Detectability Theory (SDT) was applied to the discrimination of the source (magazine) of two-word and four-word samples of English text. Operating characteristics obtained from ratings of individual four-word samples were well fit by an SDT theoretical curve, but two-word data were poorly fitted. Indices of signal detectability derived from rating responses, two alternative forced choice responses, and four alternative forced choice responses were found to be equivalent, thus supporting a key implication of SDT.
Keywords
Decision SciencesAgricultural and Biological Sciences