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 |
878082 |
2421 |
- |
2436 |
= |
-15 |
* |
(53 |
/ |
137)
|
= |
-5.8029197 |
| 4 |
878083 |
2433 |
- |
2485 |
= |
-52 |
* |
(47 |
/ |
137)
|
= |
-17.83941604 |
| 5 |
878086 |
2436 |
- |
2528 |
= |
-92 |
* |
(37 |
/ |
137)
|
= |
-24.84671526 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Broadacres Avenue Elementary
|
-48 |
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 |
27778 |
2418 |
- |
2436 |
= |
-18 |
* |
(45 |
/ |
139)
|
= |
-5.82733813 |
| 4 |
27781 |
2474 |
- |
2485 |
= |
-11 |
* |
(49 |
/ |
139)
|
= |
-3.87769784 |
| 5 |
27783 |
2436 |
- |
2528 |
= |
-92 |
* |
(45 |
/ |
139)
|
= |
-29.78417264 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Broadacres Avenue Elementary
|
-39 |
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 |
28350 |
2438 |
- |
2436 |
= |
2 |
* |
(48 |
/ |
144)
|
= |
0.66666667 |
| 4 |
28351 |
2471 |
- |
2485 |
= |
-14 |
* |
(46 |
/ |
144)
|
= |
-4.47222222 |
| 5 |
28353 |
2492 |
- |
2528 |
= |
-36 |
* |
(50 |
/ |
144)
|
= |
-12.49999999 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Broadacres Avenue Elementary
|
-16 |
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 |
28400 |
2446 |
- |
2436 |
= |
10 |
* |
(32 |
/ |
120)
|
= |
2.66666666 |
| 4 |
28402 |
2470 |
- |
2485 |
= |
-15 |
* |
(43 |
/ |
120)
|
= |
-5.375 |
| 5 |
28404 |
2494 |
- |
2528 |
= |
-34 |
* |
(45 |
/ |
120)
|
= |
-12.75 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Broadacres Avenue Elementary
|
-15 |
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 |
28580 |
2458 |
- |
2436 |
= |
22 |
* |
(49 |
/ |
134)
|
= |
8.0447761 |
| 4 |
28581 |
2407 |
- |
2485 |
= |
-78 |
* |
(38 |
/ |
134)
|
= |
-22.11940294 |
| 5 |
28582 |
2448 |
- |
2528 |
= |
-80 |
* |
(47 |
/ |
134)
|
= |
-28.05970144 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Broadacres Avenue Elementary
|
-42 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-48
|
-39
|
-16
|
-15
|
-42
|
-160.0 |
-32.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 13.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -77.0
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:
