Which aspect should a critique focus on to be most effective?

A critique that focuses on providing constructive feedback on performance is most effective because it directly addresses the individual's development and improvement. Constructive feedback is specific, actionable, and aimed at helping the recipient understand their strengths and areas for growth. This type of feedback supports learning and encourages the individual to make necessary adjustments, ultimately enhancing their skills and performance.

In contrast, merely reporting scores from previous tests does not provide insight into how those scores were achieved or how improvements can be made. Encouraging peer comparisons can foster competition but may not contribute to personal growth or development. Highlighting the instructor's teaching methods, while potentially useful, does not directly address the student's or individual's performance, which is the core focus of a critique. Thus, focusing on constructive feedback ensures that the critique is meaningful and promotes ongoing learning.