Calculation of signal detection theory measures

Harold Stanislaw*, Natasha Todorov

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    2040 Citations (Scopus)


    Signal detection theory (SDT) may be applied to any area of psychology in which two different types of stimuli must be discriminated. We describe several of these areas and the advantages that can be realized through the application of SDT. Three of the most popular tasks used to study discriminability are then discussed, together with the measures that SDT prescribes for quantifying performance in these tasks. Mathematical formulae for the measures are presented, as are methods for calculating the measures with lookup tables, computer software specifically developed for SDT applications, and general purpose computer software (including spreadsheets and statistical analysis software).

    Original languageEnglish
    Pages (from-to)137-149
    Number of pages13
    JournalBehavior Research Methods, Instruments, and Computers
    Issue number1
    Publication statusPublished - Feb 1999


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