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The behavior analyst has had good results with an intervention she designed that makes access to video games contingent upon playing with other children. She now wants to compare the effects of differing amounts of video game access time. She should conduct a

When an observer notes everything the client does or says as well as events before and after the episode of behavior, he or she is using:

In order to evoke a mand for "cookie," the behavior analyst should.  

Instruction that focuses on speed and accuracy of responding can BEST be described as promoting.  

Unwanted side-effects associated with the use of an extinction procedure are MOST likely to appear: