Which type of practice involves repeated performance without variation?

The correct answer highlights the practice of repetition with consistency, which is defined as blocked practice. This method involves focusing on one specific skill or task for an extended period before moving on to another one, allowing for a deep, immersive learning experience. By practicing in a blocked fashion, a student can develop a strong understanding and mastery of that particular skill, since there is no interference from other tasks or variations.

Blocked practice is particularly useful when learners need to refine their techniques or understand fundamental concepts thoroughly before introducing any complexity. It emphasizes repetition and allows the brain to encode the skill more effectively, leading to improved performance in that specific area once it is practiced repeatedly.

In contrast, the other methods involve varying degrees of performance and practice strategies, such as random practice, which mixes multiple skills within a practice session to promote adaptability, or spaced practice, which spreads out learning over time to enhance retention. Deliberate practice emphasizes focused, goal-oriented efforts but also includes variation to challenge the learner continually.