What does 'sampling' refer to in the context of effective reinforcing strategies?

Sampling in the context of effective reinforcing strategies refers to allowing learners to experience rewards in advance. This method serves to motivate individuals by providing them a glimpse of the potential rewards they can earn, thus fostering a positive attitude towards the learning process. By experiencing the rewards ahead of time, learners may become more engaged and excited about the tasks that lead to those rewards, as they develop a clear anticipation of positive outcomes associated with their efforts.

The other options do not align with the principle of sampling as a reinforcing strategy. Randomly providing rewards without structure does not create a clear link between behavior and reinforcement, making it less effective. Offering rewards only after tasks are completed does not enable learners to anticipate or experience the rewards beforehand, which can lessen motivation. Demonstrating what will be learned next is more about setting learning expectations rather than offering rewards, thus falling outside the scope of reinforcing strategies directly related to rewards.