1. CORE Academic Growth Model: Step-By-Step
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2. CORE Academic Growth Model
Step 1
Step 2
After Spring testing is complete, EA collects student data from the CORE Districts & EA determines demographic and other adjustments
Each student gets a customized statistical prediction based on his or her characteristics
+35 Average Growth
- 3 for Econ. Disadv.
- 4 for Disability
+ 2 for EL Status
_________
+32 points
During the year
+ 1 for Foster Status
+ 2 School Averages
- 1 for Homeless Status
[main points on slide]
Note: specific numbers on this slide for adjustments are for illustrative purposes, the actual adjustment amounts are calculated each year and for each grade/subject independently and reflect the actual observed trends across the CORE districts
Spring 2015
Test Score
Spring 2016
Predicted
Test Score

3. CORE Academic Growth Model
Step 3
Determine whether each student exceeded or did not meet prediction, and by how much
Actual Score
Student
Exceeded
Prediction by 5 Points
Predicted Score
Student Did Not Meet Prediction by 4 Points
[main points on slide]
On the left is a student who exceeded their prediction by 5 points
On the right is a student who did not meet their prediction by 4 points
The CORE Academic Growth Model takes into account the degree to which a student met or did not meet their prediction rather than just a “yes” or “no” on whether it was met
Note: “Prediction” is being used in the statistical sense of the word. These “predictions” are made after all outcome data is already received and processed rather than a forward-looking forecast about how a particular student might do on the next test. In reality, a “prediction” should be thought about as typical growth for students with a similar starting point and characteristics.
Predicted Score
Actual Score
Spring 2015
Test Score
Spring 2016
Test Score
Spring 2015
Test Score
Spring 2016
Test Score

4. CORE Academic Growth Model
Step 4
On average, did a school’s students tend to exceed or not meet their predictions, and by how much?
School A
(Average Points)
School B
(Average Points) -7 -4 +4 +8 +7 -3 +2 +4
[main points on slide]
On the left is a school where students on average tended to exceed their predictions by a wide margin – on average, by a little over 3 points on the test. This is interpreted as the school having an above average impact on students’ growth, meaning this school will have an SGP well above 50.
On the right is a school where students on average tended to not meet their predictions by a small amount – on average, they grew about one point slower on the test. This is interpreted as the school having below average impact on students’ growth, meaning this school will have an SGP slightly below 50. -6 +5 -6 -2 +3 +7 +6 -3
Above Average Impact
Below Average Impact

5. CORE Academic Growth Model
Growth result is converted to Student Growth Percentile (SGP)
Step 5
School 1
School 2
School 3
School 4 -7 -3 -2 -3 +4 +4 +2 +2 -4 -4 -2 -2 -1 +3 +8 +2
[main points on slide]
These are four hypothetical example schools.
In School 1, most students are growing quite a bit slower than similar students across CORE, which results in this school’s SGP being low in the scale.
In School 2, students are growing on average just under typical growth for similar students, which results in this school’s SGP being slightly below 50.
In School 3, students are growing on average a little faster than similar students across CORE, which results in this school’s SGP being slightly above 50.
In School 4, most students are growing far faster than similar students across CORE, which results in this school’s SGP being high in the scale.
[NOTE: The next few slides overlap with content from the “Results Interpretation” deck – skip if you plan to use that presentation too] 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
100
Slower Growth Average Growth Faster Growth

6. Converting to SGP to SQII Level
Growth Percentile 50
100 1 2 3 4 5 6 7 8 9 10
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
Level 9
Level 10
Low
High 9 10 19 20 29 30 39 40 49 50 59 60 69 70 79 80 89 90
100
SGP on the scale is converted to the CORE’s School Quality Improvement Index (SQII) so that 10 percentile points fall within each level.
For example, if a school’s SGP result is “35”, it falls within the 30th to 39th percentile in Level 4.
Color-coding of results is red for Levels 1-3, orange for 4-7, and green for 8-10.

7. Converting to SGP to SQII Level
Growth Percentile 50
100 07 57 88
Level 1
Level 6
Level 9
Here are three example results with their associated levels and color coding. 50
100 1 2 3 4 5 6 7 8 9 10
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
Level 9
Level 10
Low
High 9 10 19 20 29 30 39 40 49 50 59 60 69 70 79 80 89 90
100

8. Basic Results Interpretation
Slower Growth Average Growth Faster Growth 25 50 75
100
This grade-level team is producing…
Overall 45
typical growth for their students
6th 55
faster-than-average growth for their students
7th 77
The SGP scale ranges from 0 to 100.
Results can be provided overall across grade levels or for specific grade-level teams.
Orange results mean the grade-level team is producing typical growth for their students.
Green results mean the grade-level team is producing faster-than-average growth for their students.
Red results mean the grade-level team is producing slower-than-average growth for their students – it DOES NOT mean that these students lost knowledge.
These results already have context adjustments taken into account – these are “apples-to-apples” comparisons that take into account students starting point, English Learner status, etc.
8th 30
slower-than-average growth for their students*
*does not mean these students lost knowledge