I don't have a copy either.
I'd have to do a review of the literature to make a definitive statement
but .....
>From what I recall, the idea that interpolating CRF sessions facilitates
extinction has not held up experimentally. However, I respect Ray
Miltenberger, so I'd want to check this out.
You're right that a proper test would require some sort of dummy control
(blank time, intermittant reinforcement or both) to compared with the
interpolated CRF. I believe that some studies have done this.
A further complication is the definition of resistence to extincton.
Is the appropriate measure time to extinction, or number of responses
emitted during extinction?
In practice this depends on the outcomes of the target behaviors -- whether
time or number is more important in practice.
Bottom line:
I think that the evidence shows that the increased resistance to extinction
produced by intermittant reinforcement is not completely reversible.
If you're really masochistic, you can follow the topic of the resistance of
behavior to change all the way to Tony Nevin's _Behavioral Momentum_ theory.
I'll provide references if anyone wants to get into it.
At 10:33 AM -0500 10/31/00, Stephen Black wrote:
>In my new textbook in behavior modification, Miltenberger (2001)
>discusses the fact that extinction after intermittent
>reinforcement is prolonged compared with extinction after crf. He
>cites Neisworth et al (1985) that it might be better to first
>switch to crf before beginning extinction, which would then make
>extinction more rapid.
>
>I don't have a copy of Neisworth (getting it) so in the meantime
>I'll ask here. I'm sceptical about this. The appropriate test for
>this claim would not be between the start of extinction in each
>case. It would be to compare the time taken to extinction from
>the switch to crf from intermittent (and then to extinction) in
>one case, compared with the time taken to go directly to
>extinction from intermittent.
>
>In other words, if you're going to argue that switching to crf
>speeds extinction, you've got to count the time taken for the
>bout of crf into account.
>
>I wonder whether Neisworth did this. Anybody know, or otherwise
>have an opinion?
>
>-Stephen
>
>Neisworth, J. et al (1985). Reinforcer displacement. A
> preliminary study of the clinical application of the
> CRF/EXT effect. Behavior Modification, 9, 103-115.
>
>Miltenberger, R. (2001). Behavior Modification:
> Principles and Procedures, p. 265
>
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>Department of Psychology fax: (819) 822-9661
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