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 |
86427 |
2374 |
- |
2436 |
= |
-62 |
* |
(60 |
/ |
163)
|
= |
-22.82208586 |
| 4 |
86428 |
2428 |
- |
2485 |
= |
-57 |
* |
(54 |
/ |
163)
|
= |
-18.88343555 |
| 5 |
86431 |
2449 |
- |
2528 |
= |
-79 |
* |
(49 |
/ |
163)
|
= |
-23.74846618 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Brookfield Elementary
|
-65 |
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 |
2419 |
2322 |
- |
2436 |
= |
-114 |
* |
(48 |
/ |
162)
|
= |
-33.77777774 |
| 4 |
2421 |
2396 |
- |
2485 |
= |
-89 |
* |
(55 |
/ |
162)
|
= |
-30.21604931 |
| 5 |
2424 |
2447 |
- |
2528 |
= |
-81 |
* |
(59 |
/ |
162)
|
= |
-29.49999993 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Brookfield Elementary
|
-93 |
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 |
2491 |
2360 |
- |
2436 |
= |
-76 |
* |
(45 |
/ |
147)
|
= |
-23.26530605 |
| 4 |
2493 |
2387 |
- |
2485 |
= |
-98 |
* |
(49 |
/ |
147)
|
= |
-32.66666663 |
| 5 |
2496 |
2462 |
- |
2528 |
= |
-66 |
* |
(53 |
/ |
147)
|
= |
-23.79591832 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Brookfield Elementary
|
-80 |
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 |
2495 |
2325 |
- |
2436 |
= |
-111 |
* |
(37 |
/ |
126)
|
= |
-32.59523802 |
| 4 |
2497 |
2401 |
- |
2485 |
= |
-84 |
* |
(39 |
/ |
126)
|
= |
-25.99999996 |
| 5 |
2499 |
2413 |
- |
2528 |
= |
-115 |
* |
(50 |
/ |
126)
|
= |
-45.63492054 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Brookfield Elementary
|
-104 |
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 |
2517 |
2372 |
- |
2436 |
= |
-64 |
* |
(42 |
/ |
99)
|
= |
-27.15151514 |
| 4 |
2518 |
2361 |
- |
2485 |
= |
-124 |
* |
(27 |
/ |
99)
|
= |
-33.81818173 |
| 5 |
2519 |
2461 |
- |
2528 |
= |
-67 |
* |
(30 |
/ |
99)
|
= |
-20.3030303 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Brookfield Elementary
|
-81 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-65
|
-93
|
-80
|
-104
|
-81
|
-423.0 |
-84.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -42.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -126.6
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:
