5 experimental rats were put "singly in a box with a pair of animals conditioned to escape at the sound of a buzzer." 3 rats none of which were escape conditioned acted as controls. All experimental rats reached criterion (5 consecutive escapes) in from 35 to 80 trials, although no shock was given. No control animals reached criterion. After reaching criterion, all experimental animals showed 100% escape behavior on 5 test runs when placed in the box alone. In the same situation, the control rats gave 2 escapes out of the 15 test trials, a difference between groups significant beyond the .001 level. Escape behavior can be socially conditioned but with large inter- and intraindividual variability. (15 ref.) From Psyc Abstracts 36:02:2EO70A. (PsycINFO Database Record (c) 2006 APA, all rights reserved)