Presented with the Branch and Michael files
Baron, A., & Perone, M. (2001).
Explaining avoidance: Two factors are still better than one.
Journal of the Experimental Analysis of Behavior,
75, 357-361.
Two-factor theory remains a viable account of avoidance behavior.
By emphasizing the interplay of respondent and operant
contingencies, two-factor theory encourages the analysis of
stimuli that mediate molar consequences and incorporates control
by local events as well as events that are temporally remote,
improbable, or cumulative.
Key words: avoidance, two-factor theory, single-factor theory,
shock-frequency reduction, molar account, molecular account,
scales of process, timeout from avoidance