When Saralyn's partner says "I'm going to bed early," she follows expectantly; when he says, "I'm tired," she stays behind and reads in the living room for a while. Saralyn's behavior demonstrates:

Question

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Saralyn is discriminating between two different cues (her partner saying he's going to bed early vs. saying he's tired) and responding differently to each, which demonstrates stimulus discrimination. Stimulus generalization (choice A) would involve responding the same way to similar but not identical cues, and instinctive drift (choice B) occurs when learned behavior is replaced by instinctual behavior. Acquisition training (choice D) involves the process of learning a new behavior, which is not demonstrated by Saralyn's behavior in this situation.

When Saralyn's Partner Says "I'm Going to Bed Early," She