An instructor demonstrates to a student how to place a c-collar on. The student then practices and attempts to mimic the instructor. What level of the psychomotor domain is he practicing at?

The level of the psychomotor domain being practiced by the student in this scenario is imitation. In the context of learning, imitation refers to the initial stage where a learner observes and mimics the actions demonstrated by an instructor. This is a fundamental step in acquiring a new skill, as the student closely follows the instructor's example to replicate the technique.

When a student attempts to mimic the instructor while placing the c-collar, they are practicing the skill without yet making any adaptations or modifications based on their understanding. This stage of learning is crucial because it allows the learner to develop coordination and familiarity with the task under the guidance of an expert.

In contrast, manipulation refers to a stage where the learner has moved beyond mere imitation and can perform the task independently but may still involve some trial and error. Knowledge pertains to the cognitive understanding of the task rather than performing it, while articulation involves a higher level of proficiency where the learner can perform the skill with variations and spontaneity. These stages represent different levels of skill mastery, but in this case, the student is still at the beginning phase of learning through imitation.