SDT Assistant V3.0 - Signal Detection Theory Analysis Software

Introducing SDT Assistant V3.0 - the latest version of the powerful signal detection theory analysis software for psychophysical and sensory data. Since the release of the third edition of Detection Theory: A User's Guide (2021) by Hautus, Macmillan, and Creelman, SDT Assistant has been comprehensively updated to perform the full range of analyses detailed in the book.


SDT Assistant Manual - V. 3.0 - 2024.pdf SDT Assistant Manual - V. 3.0 - 2024.pdf
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Key Features of SDT Assistant V3.0

- ROC Analysis for Rating Data: Fit equal-variance and unequal-variance normal models to rating responses from Yes-No, 2AFC, Same-Different and more experimental designs. 

- Binary Response Analysis: Estimate d′ and calculate exact standard errors for binary data across numerous tasks like A-Not-A, 2AFC, ABX, and others.

- Data Visualization: Generate plot-ready data for normal densities and ROC curves to visualise in graphing software. 

- Appendix 5 Tables: Extend the tables from Detection Theory: A User's Guide, Appendix 5, without interpolation.

Free to use and packed with cutting-edge SDT analysis capabilities, SDT Assistant V3.0 is a must-have tool for researchers, students and professionals working with psychophysics and sensory evaluation data.

Download the latest version now and explore the detailed manual for examples and guidance. Spread the word about SDT Assistant to your colleagues and institutional libraries - a wide adoption will help disseminate signal detection theory methods broadly.