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DCAS Issues Overview. Jeff Klein Appoquinimink School District. The move from DSTP to DCAS. More accurate measure of student ability due to its adaptive nature Ability to measure growth longitudinally Provide better information to inform instruction Immediate Feedback
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DCAS Issues Overview Jeff Klein Appoquinimink School District
The move from DSTP to DCAS • More accurate measure of student ability due to its adaptive nature • Ability to measure growth longitudinally • Provide better information to inform instruction • Immediate Feedback • Flexibility in Administration • Identify Strengths and Weaknesses
Is the DCAS more accurate than DSTP? • It has been extremely difficult getting any psychometric data on the DCAS • The following is what we do know: • The conditional standard of error of measurement appears to be no better than the DSTP.
What is Standard Error of Measurement? • It represents the amount of variance in a score resulting from factors other than achievement. • If a single student were to take the same test repeatedly (with no new learning taking place between testings and no memory of question effects), the standard deviation of his/her repeated test scores is denoted as the standard error of measurement.
