| Title |
Indecision on decisional separability
|
|---|---|
| Published in |
Psychonomic Bulletin & Review, November 2010
|
| DOI | 10.3758/s13423-010-0017-1 |
| Pubmed ID | |
| Authors |
Michael L. Mack, Jennifer J. Richler, Isabel Gauthier, Thomas J. Palmeri |
| Abstract |
The theoretical framework of General Recognition Theory (GRT; Ashby & Townsend, Psychological Review, 93, 154-179, 1986) coupled with the empirical analysis tools of Multidimensional Signal Detection Analysis (MSDA; Kadlec & Townsend, Multidimensional models of perception and recognition, pp. 181-228, 1992) have become one important method for assessing dimensional interactions in perceptual decision-making. In this article, we critically examine MSDA and characterize cases where it is unable to discriminate two kinds of dimensional interactions: perceptual separability and decisional separability. We performed simulations with known instances of violations of perceptual or decisional separability, applied MSDA to the data generated by these simulations, and evaluated MSDA on its ability to accurately characterize the perceptual versus decisional source of these simulated dimensional interactions. Critical cases of violations of perceptual separability are often mischaracterized by MSDA as violations of decisional separability. |
Mendeley readers
The data shown below were compiled from readership statistics for 41 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 4 | 10% |
| Unknown | 37 | 90% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 10 | 24% |
| Student > Ph. D. Student | 9 | 22% |
| Student > Doctoral Student | 3 | 7% |
| Professor | 3 | 7% |
| Student > Postgraduate | 3 | 7% |
| Other | 9 | 22% |
| Unknown | 4 | 10% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 24 | 59% |
| Agricultural and Biological Sciences | 3 | 7% |
| Engineering | 3 | 7% |
| Neuroscience | 2 | 5% |
| Medicine and Dentistry | 1 | 2% |
| Other | 2 | 5% |
| Unknown | 6 | 15% |