Discussion
We compared the simultaneous interactive to simultaneous photo and sequential video lineups, two widely used police procedures worldwide. Encoding angle (front or profile) was systematically controlled. For front-encoding, discriminability was significantly higher in simultaneous interactive compared to sequential video lineups and simultaneous photo lineups; but, this latter difference was statistically significant only in the ROC analysis and not the modeling. For profile-encoding, discriminability was higher in simultaneous interactive compared to simultaneous photo and sequential video lineups, which did not differ from each other (see 