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1. Educator Evaluations:Growth Models Presentation to
Sand Creek Schools
June 13, 2011
2. 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.
3. 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
4. Growth Models Improvement Model
Performance Index
Simple Growth
Growth to Proficiency
Value-Added
5. 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
6. 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
7. 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
8. 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
9. 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
10. 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
11. 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
14. 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
School A was at 69% at midyearSchool A was at 69% at midyear
15. 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.