He currently serves as a distinguished professor of psychology at the John Jay College of Criminal Justice.
His dissertation was titled, Evaluation of social scientific and traditional attorney methods of jury selection.
From 1971 to 1973, Penrod worked as a Legal Officer in the Judge Advocate General's Corps, U.S. Navy.
Some variables that were found to affect performance were context reinstatement, target distinctiveness, elaboration at encoding, exposure time, cross-racial identification, and retention interval.
This study sought to discover the strength of correlation between confidence and accuracy for eyewitness identifying a suspect.