The observation and supervision of New Jersey educators stand as a critical professional component to ensure that school staff is provided with timely feedback about their performance and recommendations and support for continual improvement. As a result of the TeachNJ Act (2012), efforts were made to formalize this process across New Jersey's public school system, including the evaluation process for other educators. In response to this call to action, the New Jersey School Counselor Association (NJSCA), in collaboration with the New Jersey Department of Education (NJDOE), developed and implemented the New Jersey School Counselor Evaluation Model (NJSCEM) in 2012, which was later revised in 2017. The purpose of this qualitative single case study was to explore the perceptions and experiences of New Jersey school counselors and principals in one school district that utilize the 2017 NJSCEM to evaluate school counselors' performance. The data for this dissertation were collected through principal and school counselor interviews, a principal focus group, and document analysis at a New Jersey school district that has continuously implemented the NJSCEM since its inception. The evidence from this study suggests that the NJSCEM is an effective tool in the evaluation process of school counselors at the research site. Key findings were identified that align with the process used to evaluate school counselor performance, the school counselor-principal relationship as a result of the evaluation process, principal utilization of the competency indicators identified in the NJSCEM, and the alignment of the NJSCEM with the roles and responsibilities of school counselors. Seven themes emerged and include (a) professional obligation, (b) instructional feedback, (c) apathy, (d) misaligned expectations, (e) weaknesses, (f) strengths, and (g) communication. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]