In assuming that human behavior is learned, behaviorists also hold that all behaviors can also be unlearned, and replaced by new behaviors; that is, when a behavior becomes unacceptable, it can be replaced by an acceptable one. A key element to this theory of learning is the rewarded response.
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Gas grills do not create the traditional smoky flavor associated with barbecues, as that flavor is usually produced using charcoal or wood pellets. Although some gas grills have small smoker boxes, you will only get a hint of smoke flavor compared to a genuine charcoal grill or smoker.