Which of the following strategies is effective for teaching echoics?

The strategy that involves modeling clear pronunciation and providing rewards for accuracy is effective for teaching echoics because it directly addresses the goal of eliciting vocal responses that closely match an adult's or instructor's spoken words. Echoics involve the repetition of spoken language, so providing a clear model allows the learner to hear the correct pronunciation and articulation of words. By reinforcing this behavior with rewards when the learner accurately mimics the sounds or words, the chances of successful learning increase. Rewarding accurate responses encourages repetition and practice, which are essential components in developing echoic skills.

In contrast, using vague prompts may lead to confusion rather than clarity, making it harder for the learner to understand what is expected. Limiting practice to quiet environments can hinder the learner's ability to generalize their skills in different settings, while focusing only on written communication does not address the verbal aspect of echoics, which relies on auditory skills. Therefore, the method of clear modeling coupled with positive reinforcement effectively supports the acquisition of echoic verbal behavior.