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 |
1007583 |
2375 |
- |
2436 |
= |
-61 |
* |
(122 |
/ |
376)
|
= |
-19.79255319 |
| 4 |
1007584 |
2426 |
- |
2485 |
= |
-59 |
* |
(128 |
/ |
376)
|
= |
-20.08510633 |
| 5 |
1007587 |
2432 |
- |
2528 |
= |
-96 |
* |
(126 |
/ |
376)
|
= |
-32.17021267 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Los Angeles Elementary
|
-72 |
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 |
31799 |
2415 |
- |
2436 |
= |
-21 |
* |
(118 |
/ |
358)
|
= |
-6.9217877 |
| 4 |
31800 |
2425 |
- |
2485 |
= |
-60 |
* |
(119 |
/ |
358)
|
= |
-19.94413404 |
| 5 |
31802 |
2454 |
- |
2528 |
= |
-74 |
* |
(121 |
/ |
358)
|
= |
-25.01117312 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Los Angeles Elementary
|
-52 |
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 |
32352 |
2426 |
- |
2436 |
= |
-10 |
* |
(122 |
/ |
361)
|
= |
-3.37950138 |
| 4 |
32354 |
2451 |
- |
2485 |
= |
-34 |
* |
(118 |
/ |
361)
|
= |
-11.1135734 |
| 5 |
32356 |
2434 |
- |
2528 |
= |
-94 |
* |
(121 |
/ |
361)
|
= |
-31.50692517 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Los Angeles Elementary
|
-46 |
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 |
32379 |
2423 |
- |
2436 |
= |
-13 |
* |
(144 |
/ |
386)
|
= |
-4.84974092 |
| 4 |
32381 |
2442 |
- |
2485 |
= |
-43 |
* |
(127 |
/ |
386)
|
= |
-14.14766839 |
| 5 |
32383 |
2437 |
- |
2528 |
= |
-91 |
* |
(115 |
/ |
386)
|
= |
-27.11139895 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Los Angeles Elementary
|
-46 |
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 |
32560 |
2389 |
- |
2436 |
= |
-47 |
* |
(91 |
/ |
349)
|
= |
-12.2550143 |
| 4 |
32561 |
2461 |
- |
2485 |
= |
-24 |
* |
(135 |
/ |
349)
|
= |
-9.28366762 |
| 5 |
32562 |
2445 |
- |
2528 |
= |
-83 |
* |
(123 |
/ |
349)
|
= |
-29.25214899 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Los Angeles Elementary
|
-51 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-72
|
-52
|
-46
|
-46
|
-51
|
-267.0 |
-53.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -23.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -83.4
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:
