Final answer:
The LAUSD Coaching Competencies Rubric indicates that it's ineffective for an assistant principal to ask closed-ended questions not related to the Framework during a coaching conversation as it does not support collaborative discourse and professional growth.
Step-by-step explanation:
According to the LAUSD Coaching Competencies Rubric, C. The assistant principal asks closed-ended questions and questions that are not related to the Framework is NOT an example of effective practice when planning for a coaching conversation. This option reflects a disconnection from best practices in coaching, which emphasize the importance of open-ended, reflective questions that are tied to both data analysis and the established coaching Framework. Effective coaching is designed to spur growth and development through collaborative discourse, which is facilitated by asking the right questions that align with the purpose of the coaching session and the goals of the coachee.