At the end she had enough and didn’t want to give me the ball. We did get her to give it me off camera to end on a positive. I should of ended it far sooner. Today in our portage session Tink gave up the ball to the portage worker for food reinforcement 7 times in a row.
Skinner’s daughter, behaviour analyst Julie Vargas, Ph.D., has told me, “His realisation at that moment was that if you could do this, you could shape behaviour anywhere, in any environment.” You did not need to manipulate the task or build elaborate apparatus. You could just reinforce moves in the right direction.
Skinner named this newly discovered method shaping, to differentiate it from the mechanical process of successive approximation.
We have found a very quick way to get Tink to attend the mat thanks to Corinne Wrend. As soon as Tink looks or makes a movement towards the mat, I TAG her and place the reinforcement on the mat.
She will then start to move towards the mat for the reinforcement. As she is moving towards the mat I tag each arm and leg movement towards the mat, all the time I’m TAGging I’m placing each TAGs reinforcement on the mat. So when she eventually is at the mat the mat is full of reinforcement she has just earned. This is making the mat extremely reinforcing.
We also used placement of reinforcement on the floor. This is Tink doing it now with out the tag or reinforcement: