Reliability and Validity
The reliability of an assessment is the extent to which scores from the assessment will remain the same between two administrations within a short period. The validity of an assessment is the extent to which the assessment measures what it claims to measure.
A number of other studies have demonstrated the reliability and validity of STAR Reading, STAR Math, and STAR Early Literacy. Additionally, a number of studies have demonstrated the correlation between STAR assessments and other tests of similar skills. As with any assessment or test, however, student scores will vary each time the assessment or test is administered. This concept is called the statistical error of a measurement.
External agencies, like the National Center on Student Progress Monitoring (NCSPM), have assessed the STAR products and found them to be technically sound. Additionally, the Southwest Educational Development Laboratory (SEDL) has categorized STAR Reading and STAR Early Literacy as criterion-referenced and norm-referenced assessments. In this latter case, the STAR Early Literacy package is said to evaluate eight cognitive elements.
STAR Early Literacy was mentioned in the 2006 Readers' Choice Awards: Best Reading Software, a survey by eSchool News.
Read more about this topic: STAR (software)
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