Which instructional method is least likely to engage psychomotor objectives?

The least likely instructional method to engage psychomotor objectives is lecture. Psychomotor objectives focus on physical skills and the ability to perform specific actions, which require active participation and practice. A lecture, while informative, typically involves passive listening without opportunities for participants to engage physically or practice skills related to those objectives.

In contrast, methods such as demonstration and drill actively involve students in practicing skills, allowing them to develop motor functions and competencies through repetition and feedback. Role playing encourages engagement through simulation of real-life scenarios, which also involves physical movement and practice of skills. Illustrations may provide visual aids, but they do not facilitate the hands-on practice necessary for psychomotor skill development.

Thus, lecture stands out as the least effective method for engaging psychomotor objectives, as it does not promote physical activity or hands-on learning.