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Educator Evaluations:Growth Models
Presentation to Sand Creek Schools
June 13, 2011
2
Michigan School Reform Law
• Conduct annual educator evaluations
• Include measures of student growth as a significant factor
• Locally determine the details of the educator evaluations, the consequences, and the timeline for implementation.
Key Characteristics of Growth Models
• Data must align with agreed-upon content standards
• Data must measure a broad range of skills
• Data must document year-to-year growth on a single scale
Growth Models
• Improvement Model• Performance Index• Simple Growth• Growth to Proficiency• Value-Added
Improvement ModelCompares one cohort of students with another cohort
in same grade/course• Benefits
– Easy to implement– Simple to communicate
• Disadvantages– Does not track individual
student progress– Does not take into
account other factors that may have promoted/inhibited growth
Performance IndexCombines multiple data sets into a single scale
• Benefits– Recognizes changes in all
achievement levels– Uses multiple measures– Can lead to
improvement for all students, not just “bubble” students
• Disadvantages– Does not track individual
student progress– Do not capture change
in each achievement level
– May be desirable to use more achievement levels
Simple GrowthFollows same cohort of students
• Benefits– Uses scaled scores from
one year to the next– Documents changes in
individual students
• Disadvantages– Includes only the
students present for both years
– Need to determine how much growth is enough
Growth to ProficiencyDesigned to show if students are “on-track”
to meet standards• Benefits
– Provides more data points toward goal
– Recognizes gains even if students are not proficient
– Focus on all students, not just “bubble” students
• Disadvantages– Targets must be
determined by outside agencies
– Benchmark points must be agreed upon
Value-AddedPast performance used to predict future scores
• Benefits– Measures student
performance over time– Documents the impact
of instructional resource, program, or school process on the change
• Disadvantages– Complex statistics– Isolates student
demographics that may impact performance
Examples of Growth AssessmentsSource: Britton-Deerfield Teacher-Evaluation Committee, 2011
• Local– Classroom tests, performance
assessments, IEP goals, portfolio exhibits
• State– MEAP, MME (ACT), MI-
Access
• National– DIBELS, STAR, NWEA, EXPLORE,
PLAN
‘data from multiple sources ’
Key Characteristics of Growth Models• Data must align with agreed-upon content standards
– Identify significant standards for growth– Align assessment and instructional plans
• Data must measure a broad range of skills– Develop assessment instruments (test blueprints,
performance rubrics, and scoring guides)– Construct assessment calendar (beginning to end of year)
• Data must document year-to-year growth on a single scale– Determine initial threshold scores for determining growth
SMART GOALS
Specific
Measurable
Attainable
Results-based
Time-bound
School A SMART Goals• During the 2009-2010 school year, the percent of 1st grade
students at School A Elementary School scoring at benchmark in Oral Reading Fluency will increase from 75.47% to 95% by the end of the 2010 school year as measured by the Dynamic Indicators of Basic Early Literacy Skills (DIBELS).
• Specific? 1st grade students at School A scoring at benchmark in Oral Reading Fluency
• Measureable? by the Dynamic Indicators of Basic Early Literacy Skills (DIBELS)
• Attainable? During the 2009-2010 school year• Results-based? 75.47% to 95% • Time-bound? by the end of the 2010 school year
References
• Measuring Student Growth: A Guide to informed decision making. (2007). Center for Public Education.
• Using Student Progress to Evaluate Teachers: A Primer on Value-Added Models. (2005). Education Testing Service.