The Commonwealth Accountability Testing System includes which of the following components?

The Commonwealth Accountability Testing System (CATS) is designed to ensure that educational standards are met in Kentucky schools by encompassing a comprehensive approach to student assessment. The system integrates various assessment methods to provide a well-rounded evaluation of student performance.

Including norm-referenced testing for individual students highlights the importance of measuring student achievement against national standards. This element allows for a comparison of a student's performance within a larger context, offering insights into their academic standing in relation to peers.

Written portfolios serve as a vital component, showcasing student work over time. This reflects not only the knowledge gained but also critical thinking, creativity, and overall progression in various subjects.

Additionally, incorporating performance assessments for the performing arts recognizes the value of arts education and the need to evaluate student competencies in these areas. Such assessments ensure that students involved in the arts receive the same level of scrutiny and accountability as those in traditional academic subjects.

The inclusion of all these components in the Commonwealth Accountability Testing System signifies a holistic approach to education, aiming to cover a broad spectrum of skills and competencies among students, thereby justifying the selection of all the components listed in the choice.