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 |
893749 |
2456 |
- |
2436 |
= |
20 |
* |
(72 |
/ |
263)
|
= |
5.47528516 |
| 4 |
893752 |
2491 |
- |
2485 |
= |
6 |
* |
(89 |
/ |
263)
|
= |
2.03041825 |
| 5 |
893753 |
2535 |
- |
2528 |
= |
7 |
* |
(102 |
/ |
263)
|
= |
2.71482889 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Darby Avenue Elementary
|
10 |
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 |
28255 |
2473 |
- |
2436 |
= |
37 |
* |
(82 |
/ |
243)
|
= |
12.48559668 |
| 4 |
28256 |
2486 |
- |
2485 |
= |
1 |
* |
(67 |
/ |
243)
|
= |
0.27572016 |
| 5 |
28258 |
2520 |
- |
2528 |
= |
-8 |
* |
(94 |
/ |
243)
|
= |
-3.0946502 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Darby Avenue Elementary
|
10 |
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 |
28821 |
2466 |
- |
2436 |
= |
30 |
* |
(69 |
/ |
229)
|
= |
9.03930129 |
| 4 |
28824 |
2486 |
- |
2485 |
= |
1 |
* |
(89 |
/ |
229)
|
= |
0.38864629 |
| 5 |
28826 |
2522 |
- |
2528 |
= |
-6 |
* |
(71 |
/ |
229)
|
= |
-1.86026201 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Darby Avenue Elementary
|
8 |
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 |
28871 |
2480 |
- |
2436 |
= |
44 |
* |
(65 |
/ |
217)
|
= |
13.17972348 |
| 4 |
28872 |
2516 |
- |
2485 |
= |
31 |
* |
(66 |
/ |
217)
|
= |
9.42857142 |
| 5 |
28875 |
2515 |
- |
2528 |
= |
-13 |
* |
(86 |
/ |
217)
|
= |
-5.15207373 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Darby Avenue Elementary
|
17 |
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 |
29050 |
2468 |
- |
2436 |
= |
32 |
* |
(63 |
/ |
192)
|
= |
10.5 |
| 4 |
29051 |
2523 |
- |
2485 |
= |
38 |
* |
(59 |
/ |
192)
|
= |
11.67708331 |
| 5 |
29052 |
2534 |
- |
2528 |
= |
6 |
* |
(70 |
/ |
192)
|
= |
2.1875 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Darby Avenue Elementary
|
24 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
10
|
10
|
8
|
17
|
24
|
69.0 |
13.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 31.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -4.2
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:
