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 |
925597 |
2348 |
- |
2436 |
= |
-88 |
* |
(114 |
/ |
332)
|
= |
-30.21686738 |
| 4 |
925600 |
2399 |
- |
2485 |
= |
-86 |
* |
(117 |
/ |
332)
|
= |
-30.30722887 |
| 5 |
925601 |
2436 |
- |
2528 |
= |
-92 |
* |
(101 |
/ |
332)
|
= |
-27.98795176 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lorena Street Elementary
|
-89 |
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 |
29261 |
2388 |
- |
2436 |
= |
-48 |
* |
(83 |
/ |
301)
|
= |
-13.23588038 |
| 4 |
29263 |
2386 |
- |
2485 |
= |
-99 |
* |
(111 |
/ |
301)
|
= |
-36.50830564 |
| 5 |
29265 |
2419 |
- |
2528 |
= |
-109 |
* |
(107 |
/ |
301)
|
= |
-38.74750824 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lorena Street Elementary
|
-88 |
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 |
29826 |
2392 |
- |
2436 |
= |
-44 |
* |
(78 |
/ |
262)
|
= |
-13.09923661 |
| 4 |
29828 |
2418 |
- |
2485 |
= |
-67 |
* |
(84 |
/ |
262)
|
= |
-21.48091603 |
| 5 |
29829 |
2404 |
- |
2528 |
= |
-124 |
* |
(100 |
/ |
262)
|
= |
-47.32824424 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lorena Street Elementary
|
-82 |
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 |
29875 |
2388 |
- |
2436 |
= |
-48 |
* |
(65 |
/ |
226)
|
= |
-13.80530971 |
| 4 |
29876 |
2408 |
- |
2485 |
= |
-77 |
* |
(82 |
/ |
226)
|
= |
-27.93805307 |
| 5 |
29879 |
2428 |
- |
2528 |
= |
-100 |
* |
(79 |
/ |
226)
|
= |
-34.9557522 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lorena Street Elementary
|
-77 |
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 |
30050 |
2400 |
- |
2436 |
= |
-36 |
* |
(69 |
/ |
203)
|
= |
-12.23645317 |
| 4 |
30051 |
2409 |
- |
2485 |
= |
-76 |
* |
(57 |
/ |
203)
|
= |
-21.33990145 |
| 5 |
30052 |
2420 |
- |
2528 |
= |
-108 |
* |
(77 |
/ |
203)
|
= |
-40.96551715 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lorena Street Elementary
|
-75 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-89
|
-88
|
-82
|
-77
|
-75
|
-411.0 |
-82.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -64.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.2
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:
