The Impact of Target Base Rate on Training and Transfer of Learning in Airline Luggage Screening: An Examination of Three Base Rate Scenarios
Article first published online: 17 JAN 2013
Copyright © 2013 John Wiley & Sons, Ltd.
Applied Cognitive Psychology
Volume 27, Issue 2, pages 263–273, March/April 2013
How to Cite
Madhavan, P., Gonzalez, C. and Brown, J. R. (2013), The Impact of Target Base Rate on Training and Transfer of Learning in Airline Luggage Screening: An Examination of Three Base Rate Scenarios. Appl. Cognit. Psychol., 27: 263–273. doi: 10.1002/acp.2905
- Issue published online: 21 MAR 2013
- Article first published online: 17 JAN 2013
- Manuscript Accepted: 6 DEC 2012
- Manuscript Revised: 25 OCT 2012
- Manuscript Received: 18 SEP 2010
- Multidisciplinary University Research Initiative Program. Grant Number: N00014-01-1-0677
- U.S. Army Research Laboratory. Grant Number: DAAD19-01-2-0009
We examined the extent to which transfer of training is impacted by target probability and physical similarity of training and transfer stimuli. Participants performed a luggage screening task where they trained on three base rates of weapon presence as follows: 100%, 50% and 20%; at transfer, participants detected the same weapons (Study 1) or novel weapons (Studies 2 and 3) at a base rate of 20%. In Study 3, we modified training such that all participants observed the same absolute number of weapons (n = 100) across base rate conditions. In Study 1, different base rates did not significantly impact transfer. In Study 2, 100% base rates helped hit rates at transfer but increased false alarms via liberal shifts in decision criteria and slowed detection times. Study 3 revealed no effect of base rates on transfer hit rates; however, training on 100% base rates still led to liberal responding and inflated false alarms. Copyright © 2013 John Wiley & Sons, Ltd.