Yulemy is using a behavioral observation scale $($BOS$)$ for performance evaluation. This method requires the evaluator to rate each behavior on a scale from $1$ to $5$ to indicate the frequency with which the employee exhibits the behavior.

What is a potential challenge associated with using the BOS technique for performance appraisal?

It provides limited room for differentiation between different behaviors.

It relies heavily on subjective judgments without clear criteria.

It may not capture the overall performance comprehensively.

It lacks clarity and specificity in defining observable behaviors.