I think everyone raises some really interesting and valid points.
No one system is perfect and no system should be used without a really in depth look at the (to use some jargon) function (ie purpose) of the problem behaviour.
I do worry when I read people on MN advocating star charts left,right and centre.In one case tonight (no names mentioned) it was suggested for a child who obviously has issues with his father's departure.All the star charts in the world aren't going to get to the bottom of that.
I am interested in severe behavioral problems and self injury-things that impact significantly on the lives of the individual who perpetrates them and the people around them.Let me tell you this;appealing to the 'better nature' of a severely autistic kid who is gounging out the eyes of his brother does not work.
A functional analysis will (if successful) uncover the purpose of the behaviour.Is it to elicit attention? Is it to escape a demand? Is it due to low stimulation?'
The great thing about a behavioural approach is that it does not blame some inner state/characteristic for problem behaviour.Thus a child is not labelled as bad or vicious or sly.Instead,the belief is that the environment has created this behaviour and the environment can eliminate it too,if manipulated correctly.
So much of our helping serves no purpose,being mentalisitc.Behaviourism is a science and therefore only concerned with measurable data.Thoughts and feelings can't be measured (which isn't ot say they don't exist) therefore a behaviourist doesn't concern him/herself with them.
I am facinated by the Big MoFos thread which I often read. Classic example of a mentalistic approach.It focusses on feelings a great deal.It is now 40 weeks in.I would be really interested in knowing how many people have actually lost weight who post on it.