Understanding Assessment: Types of Validity in Testing
Validity refers to the degree to which an item is measuring what it’s actually supposed to be measuring.
Report Writing: Quantification
Even though standardized test scores should not be used to determine or diagnose disability, quantification is required to demonstrate that a child should receive services. It is the evaluator’s job to use his or her clinical judgement to determine percentage of delay if it exists.
Understanding Assessments: Reliability of Tests
Reliability is the degree of consistency of measurement in a test. A test has a high degree of reliability if it produces similar results consistently under similar conditions.
