A standardized test has specific guidelines and scripts for the administration of the test. Most norm-referenced tests are also standardized. Biases can occur in creating an assessment, scoring an assessment, or evaluating the data from an assessment. Bias in assessment leads to misinformation about student performance or knowledge. Content standard are the subjects taught in the classroom.
Disaggregated data present the most complete picture for any evaluation .
Examples of multiple measures used to determine Grade 4 proficiency could include STAR , a writing sample, and report card. A valid test truly measures what it purports to measure. A poorly constructed multiple choice test may measure test taking ability more than proficiency in a given subject matter area. For example, if a student takes a test one day, and then takes it again the next day, a reliable test will show the same score for the student each time he or she took the test. Percentile ranks tell us what percentage of the norm group scored at or below the given rank.