Please cite:
Cohen, A. L., Starns, J. J., & Rotello, C. M. (2020). sdtlu: An R package for the signal detection analysis of eyewitness lineup data. Behavior Research Methods, 1-23.
To install:
- Download the package.
- R command prompt: Set the working directory to the location of the downloaded package then type install.packages('sdtlu_0.0.0.9000.tar.gz', repos=NULL). Change the number to match your downloaded version.
- RStudio: Tools > Install Packages. Select Package Archive File (.tar.gz). Browse and select the downloaded package. Install.
The data are taken from:
- Palmer, M. A., Brewer, N., Weber, N., & Nagesh, A. (2013). The
confidence-accuracy relationship for eyewitness identification
decisions: Effects of exposure duration, retention interval, and
divided attention. Journal of Experimental Psychology: Applied, 19,
55–71.
- Gronlund, S. D., Carlson, C. A., Dailey, S. B., & Goodsell, C. A.
(2009). Robustness of the sequential lineup advantage. Journal of
Experimental Psychology: Applied, 15, 140–152.
- Horry, R., Palmer, M. A., & Brewer, N. (2012). Backloading in the sequential lineup prevents within-lineup criterion shifts that undermine eyewitness identification performance. Journal of Experimental Psychology: Applied, 18(4), 346.
Thank you to those authors for making their data available.
Note that, for demonstration purposes, the data are incomplete and have been altered somewhat. Please see Cohen, Starns, & Rotello for details.
Version notes:
- 0.0.0.90100: Bug fix: Simultaneous model now works with show-ups. Included an example of a show-up in the how-to documentation.
- 0.0.0.90000: Original version
