2015
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
2259962 |
2417 |
- |
2436 |
= |
-19 |
* |
(64 |
/ |
169)
|
= |
-7.19526626 |
| 4 |
2259963 |
2473 |
- |
2485 |
= |
-12 |
* |
(62 |
/ |
169)
|
= |
-4.40236686 |
| 5 |
2259966 |
2468 |
- |
2528 |
= |
-60 |
* |
(43 |
/ |
169)
|
= |
-15.26627214 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Perry Elementary
|
-27 |
2016
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
69345 |
2445 |
- |
2436 |
= |
9 |
* |
(63 |
/ |
167)
|
= |
3.39520957 |
| 4 |
69347 |
2456 |
- |
2485 |
= |
-29 |
* |
(58 |
/ |
167)
|
= |
-10.07185628 |
| 5 |
69350 |
2502 |
- |
2528 |
= |
-26 |
* |
(46 |
/ |
167)
|
= |
-7.16167663 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Perry Elementary
|
-14 |
2017
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
71178 |
2452 |
- |
2436 |
= |
16 |
* |
(58 |
/ |
147)
|
= |
6.31292517 |
| 4 |
71180 |
2445 |
- |
2485 |
= |
-40 |
* |
(40 |
/ |
147)
|
= |
-10.88435372 |
| 5 |
71182 |
2476 |
- |
2528 |
= |
-52 |
* |
(49 |
/ |
147)
|
= |
-17.33333332 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Perry Elementary
|
-22 |
2018
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
71323 |
2430 |
- |
2436 |
= |
-6 |
* |
(43 |
/ |
128)
|
= |
-2.015625 |
| 4 |
71326 |
2465 |
- |
2485 |
= |
-20 |
* |
(48 |
/ |
128)
|
= |
-7.5 |
| 5 |
71327 |
2506 |
- |
2528 |
= |
-22 |
* |
(37 |
/ |
128)
|
= |
-6.359375 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Perry Elementary
|
-16 |
2019
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 3 |
71811 |
2466 |
- |
2436 |
= |
30 |
* |
(50 |
/ |
131)
|
= |
11.45038167 |
| 4 |
71812 |
2460 |
- |
2485 |
= |
-25 |
* |
(41 |
/ |
131)
|
= |
-7.82442748 |
| 5 |
71813 |
2499 |
- |
2528 |
= |
-29 |
* |
(40 |
/ |
131)
|
= |
-8.85496182 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Perry Elementary
|
-5 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-27
|
-14
|
-22
|
-16
|
-5
|
-84.0 |
-16.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 7.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -40.8
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
