Understanding the New ABC’s Formulas

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# Understanding the New ABC’s Formulas - PowerPoint PPT Presentation

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?. I TOTALLY get it and can explain it to others.

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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?

I TOTALLY get it and can explain it to others.

I think I get it but cannot explain it to others.

I’m not sure how growth is figured but I have some ideas.

I’m clueless.

Vocabulary

Expected Growth

High Growth

Scale Scores

See 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 grade

in math, what level would they be?

Don’t worry….blonde directions are coming…

Each student has his/her own individualized

Predicted Change Score

Or Predicted C-Score

Or Predictor Score

• Based on the average of their

Actual Change Scores

over the two previous assessments

(uses 1 year if 2 are not available)

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

354.0

- 355.6

-1.6  9.20

-.174 - Erik’s Actual C-Score

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

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

Predicted Change Score Formula

predicted C- Score

• Each student has an individual
• Based on the average of the

Actual C- Scores

on their

two previous assessments.

(uses only 1 if 2 are not available)

Average Two Previous Assessments C-Scores (ATPA)

X

Coefficient = Predicted C- Score

• Coefficient for 2 years of data = .92
• Coefficient for 1 year of data =.82

Coefficients were set when the New Formulas were developed

They help account for the “regression to the mean”

Figuring Erik’s

-

=

(6th + 7th)/2

Scale Score = 355 Level 2

x

=

 2 =

Figuring Jeff’s

-

=

Scale Score = ____Level__

x

=

 2 =

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

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

what does that mean for his growth?

Figuring Jeff’s

-

=

Predictor = (Predicted C-score * Standard Deviation) + Mean Scale

(.816*9.4)+350

Scale Score = 357 Level 3

x

=

 2 =

-

Actual C-Score

(on current assessment)

AC

=

Predicted C-Score

0.00

If the AC is greater than or equal to

Then - the student has met

School Level

• = Average of all eligible student’s Academic Growth
• If the result is greater than or equal to

0.00

• 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

What else?

• Prioritized a list of students for intense tutoring that meet with
• a volunteer every day and work in Carnegie online (middle
• school)
• 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 data
• to the table

You mean there is more?

• Data Notebooks - Elementary - Students documents attendance,
• Formative data, writing samples, Accelerated Reader Logs
• 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.

Cathy Williams

Instructional Accountability Supervisor

Greene County Schools

cathywilliams@greene.k12.nc.us