Which of the following is NOT one of the identified problems with the behaviorist model?

The correct answer indicates that the behaviorist model does not explicitly address the inability to learn non-verbal cues as one of its identified problems. The behaviorist model, which emphasizes observable behaviors and external stimuli, primarily deals with how behaviors are conditioned through reinforcement and punishment. While it may not fully encompass the complexities of non-verbal communication, the model itself is more focused on the mechanics of language acquisition through reinforcement rather than the learning of non-verbal cues.

The other options highlight more recognized flaws within the behaviorist framework. For instance, the improvisatory nature of language creation shows that language isn't merely a result of conditioned responses but also reflects creativity and innovation. The overly simplistic approach refers to the critique that behaviorism does not adequately account for the richness and depth of language development and cognitive processes involved. Lastly, the lack of clear rewards for learning suggests that language acquisition involves intrinsic motivators and social interactions that are not adequately captured by a rewards-based system. These aspects underscore the limitations of the behaviorist perspective in explaining the complexities of language learning.