Baseline Data

Assessments & Evaluations

Definition

Data collected at the beginning of an intervention or IEP period that establishes a student's starting level of performance. Baseline data is essential for writing measurable IEP goals and for determining whether a student is making progress over time.

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Related Terms

Progress Monitoring

The systematic, ongoing collection of data to assess whether a student is making adequate progress toward IEP goals or responding to an intervention. Progress monitoring uses brief, repeated assessments (like CBMs) to track growth and inform instructional decisions.

Present Levels of Academic Achievement and Functional PerformancePLAAFP

The section of the IEP that describes where a child currently stands academically and functionally. It includes data from evaluations, classroom performance, and teacher/parent observations. Present levels are the foundation of the IEP — goals, services, and placement all flow from this section.

More in Assessments & Evaluations

Adaptive Behavior Assessment Age Equivalent Alternate Assessment Assistive Technology Assessment Criterion-Referenced Test CBM Discrepancy Model Eligibility Report

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