3 Types of
3 Types of Measures
Status (test results).
Adequate Yearly Progress.
Growth and “Value-added” measures.
None of them tell us what happened to
cause the result on their own.
1. Based on test scores at a specific point
in time – “standardized” assessments.
2. Designed to permit comparisons of “end
results” among schools, districts, states,
3. Don’t account for prior status placement.
1. Based on test scores at a specific point in time
– “standardized” assessments.
2. Designed to spotlight work of schools, districts,
states, with minority groups of students.
3. Still status results, even though “progress over
time” is the focus.
Growth / Progress Measures:
1. Analyze individual student test scores from
one in time to another– standardized
assessments, but focus is growth over time.
2. Designed to take students’ prior achievement
levels into account.
3. Value-added analysis takes an additional
step, to identify how much of the students’
growth was likely due to the school or district.