Standards Aligned System

Classroom Diagnostic Tools (CDT)

The Pennsylvania Department of Education continues to enhance and expand its Classroom Diagnostic Tools (an on-line computer adaptive test), for Reading/Literature, Writing/Composition, Mathematics, and Science. The diagnostic assessments are available for students in the lower grades (3-5) and the grades 6-high school. In multiple-choice format, the assessments are available to all Pennsylvania K-12 schools.

CDTs are based on content assessed by the Keystone Exams and the Pennsylvania System of School Assessment (PSSA). Although not a predictor for PSSA and Keystone Exam performance, CDTs provide a snapshot on why and how students may still be struggling or exceeding grade and/or course Eligible Content. The CDT data, along with other data, informs instruction in a timely and efficient manner.

  • Available for use in the classroom throughout the school year on a voluntary basis.
  • Provide real-time results, ensuring valid and reliable measures, of students’ skills with links to Materials and Resources in SAS.
  • Highlight student strengths and areas of need thus becoming part of the discussions between teachers, parents/ guardians, and students to set individual learning goals.

To access enrollment information and other documents for the Classroom Diagnostic Tools, please visit:

Standards Aligned System
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