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Understanding the New ABC’s
Formulas
Slide show originally created by Caswell County Schools Revised by Cathy Williams - Greene County Schools
ABC/AYP
What is your level of understanding of
ABC Growth?
A. I TOTALLY get it and can explain it to others.
B. I think I get it but cannot explain it to others.C. I’m not sure how growth is figured but I have
some ideas.D. I’m clueless.
VocabularyExpected Growth
Expected Academic Change
High Growth
High Academic Change
Scale ScoresSee Handout
Question after Handout:In 3rd grade math, the scale score of 352 is
Level 4. If a child made a 357 in the 4th gradein math, what level would they be?
7. Each student has his/her own individualized
Based on the average of their
Predicted Change Score
Actual Change Scores
over the two previous assessments (uses 1 year if 2 are not available)
Don’t worry….blonde directions are coming…
Or Predicted C-Score
Or Predictor Score
Actual Change Score Formula
(Student’s Developmental Scale Score – State Mean Scale Score)
Standard Deviation
-1.6 9.209.20
-.174 - Erik’s Actual C-Score
Standard Deviation & State Mean are set in the 1st year of a test edition’s implementation
(Erik’s Current (2008-2009)7th Reading SS)
(State Mean for 7th Reading)
(7th grade Reading Standard Deviation)
354.0- 355.6
Actual Change Score Formula
(Student’s Developmental Scale Score – State Mean Scale Score)
Standard Deviation
Standard Deviation & State Mean are set in the 1st year of a test edition’s implementation
Math
Gr 3 : =(scale - 343.2)/9.700971= c-score
Gr 4: =(scale - 348.9)/9.460422
Gr 5: =(scale - 353.7)/9.200000
Gr 6: =(scale - 354.9)/9.697828
Gr 7: =(scale - 357.8)/9.646732
Gr 8: =(scale - 359.2)/9.208106
READING
Gr 3: =(scale - 338.6)/11.900000
Gr 4: =(scale - 345.2)/10.100000
Gr 5: =(scale - 350.0)/9.400000
Gr 6: =(scale - 352.9)/9.600000
Gr 7: =(scale - 355.6)/9.200000
Gr 8: =(scale - 358.4)/8.800000
Based on the average of the
Predicted Change Score Formula
Average Two Previous Assessments C-Scores (ATPA)
Coefficient for 2 years of data = .92
predicted C- predicted C- ScoreScoreActual C- Scores
XX
Each student has an individual
two previous assessments.
on their
Coefficient = Predicted C- Score
Coefficient for 1 year of data = .82
(uses only 1 if 2 are not available)
Coefficients were set when the New Formulas were developed
They help account for the “regression to the mean”
Figuring Erik’s Expected ReadingReading C-Score
Erik’s Tests Scale Score
6th Grade
2007-2008347.0
7th Grade
2008-2009354.0
Grade Actual C-Score
6th (R) -.6157th (R) -.174
Difference
-5.9
-1.6
St. Deviation
9.60
9.20-
State Mean
352.9
355.6
2 =
ATPA
-0.394 x
Coefficient
.92Set by the State
Erik’s
Expected C-Score
(predicted C-Score)
-0.363(For 2009-2010 - 8th
gr.)
Actual C-Score
-.615
-.174
=
=
Scale Score = 355 Level 2(6th + 7th)/2
Figuring Jeff’s Expected ReadingReading C-Score
Jeff’s Tests Scale Score
3rd Grade
2007-2008347.0
4th Grade
2008-2009356.0
Grade Actual C-Score
6th (R)
7th (R)
Difference St. Deviation
-State Mean
2 =
ATPA
x
Coefficient
Set by the State
Jeff’s
Expected C-Score
(predicted C-Score)
(For 2009-2010 - 5th gr.)
Actual C-Score
=
=
Scale Score = ____Level__
Actual Change Score Formula
(Student’s Developmental Scale Score – State Mean Scale Score)
Standard Deviation
Standard Deviation & State Mean are set in the 1st year of a test edition’s implementation
Math
Gr 3 : =(scale - 343.2)/9.700971= c-score
Gr 4: =(scale - 348.9)/9.460422
Gr 5: =(scale - 353.7)/9.200000
Gr 6: =(scale - 354.9)/9.697828
Gr 7: =(scale - 357.8)/9.646732
Gr 8: =(scale - 359.2)/9.208106
READING
Gr 3: =(scale - 338.6)/11.900000
Gr 4: =(scale - 345.2)/10.100000
Gr 5: =(scale - 350.0)/9.400000
Gr 6: =(scale - 352.9)/9.600000
Gr 7: =(scale - 355.6)/9.200000
Gr 8: =(scale - 358.4)/8.800000
Figuring Jeff’s Expected ReadingReading C-Score
Jeff’s Tests Scale Score
3rd Grade
2007-2008347.0
4th Grade
2008-2009356.0
Grade Actual C-Score
6th (R) .7057th (R) 1.069
Difference
8.4
10.8
St. Deviation
11.9
10.1-
State Mean
338.6
345.2
2 =
ATPA
.887 x
Coefficient
.92Set by the State
Jeff’s
Expected C-Score
(predicted C-Score)
.816(For 2009-2010 - 5th
gr.)
Actual C-Score
.705
1.069
=
=
Scale Score = 357 Level 3
Predictor = (Predicted C-score * Standard Deviation) + Mean Scale
(.816*9.4)+350
If Jeff hits a 354 for Reading in 5th grade,what does that mean for his growth?
Academic Change
Actual C-Score(on current assessment) - Predicted C-Score = AC
Academic Change
If the AC is greater than or equal to
Then - the student has met
0.00
Expected Academic Change (EAC)
School Level Expected Academic Growth
= Average of all eligible student’s Academic Growth
0.00
Expected Academic Change (EAC)
If the result is greater than or equal to
Then – the school met it’s
AKA:Met Growth
Where did we go from here?
•Set up data meetings with all schools to review student level data
•Identified students with needs and created a plan of action for students.
• Carnegie Math and ClassScape at Greene County Middle courtesy of JoAnn Pennington, Assistant Principal
Bynum - Core 1 y = 0.0654x + 23.738
R2 = 0.4453
0
20
40
60
80
100
0 200 400 600 800 1000 1200
Carnegie Skills Mastered
ClassScape % Correct
Series1Linear (Series1)
Carnegie and ClassScape…
VIP Students
What else?• Prioritized a list of students for intense tutoring that meet with
a volunteer every day and work in Carnegie online (middleschool)
• After school Carnegie Tutoring run by the teachers (middle school)
• Café meetings (Curriculum Assessment with Formative Evaluations) - Middle School
• Lunch and Learn (Elementary) - Teachers bring their datato the table
You mean there is more?• Data Notebooks - Elementary - Students documents attendance,
Formative data, writing samples, Accelerated Reader Logs
• Plans are made for each student and administrators know the data for their school
• FIT - Focused Instructional Time - Middle School
• Focused Reading - Elementary School
• Central Office supports the school
• Introducing EVASS to the schools in small bites…not dropping it on them like a lead balloon.