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 |
869456 |
2382 |
- |
2436 |
= |
-54 |
* |
(102 |
/ |
285)
|
= |
-19.32631574 |
| 4 |
869457 |
2420 |
- |
2485 |
= |
-65 |
* |
(89 |
/ |
285)
|
= |
-20.29824557 |
| 5 |
869460 |
2449 |
- |
2528 |
= |
-79 |
* |
(94 |
/ |
285)
|
= |
-26.05614032 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Alta Loma Elementary
|
-66 |
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 |
27501 |
2384 |
- |
2436 |
= |
-52 |
* |
(85 |
/ |
257)
|
= |
-17.19844355 |
| 4 |
27503 |
2403 |
- |
2485 |
= |
-82 |
* |
(98 |
/ |
257)
|
= |
-31.26848247 |
| 5 |
27505 |
2449 |
- |
2528 |
= |
-79 |
* |
(74 |
/ |
257)
|
= |
-22.7470817 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Alta Loma Elementary
|
-71 |
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 |
28074 |
2394 |
- |
2436 |
= |
-42 |
* |
(94 |
/ |
265)
|
= |
-14.8981132 |
| 4 |
28075 |
2404 |
- |
2485 |
= |
-81 |
* |
(88 |
/ |
265)
|
= |
-26.89811315 |
| 5 |
28078 |
2441 |
- |
2528 |
= |
-87 |
* |
(83 |
/ |
265)
|
= |
-27.24905659 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Alta Loma Elementary
|
-69 |
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 |
28125 |
2383 |
- |
2436 |
= |
-53 |
* |
(76 |
/ |
238)
|
= |
-16.92436974 |
| 4 |
28126 |
2437 |
- |
2485 |
= |
-48 |
* |
(83 |
/ |
238)
|
= |
-16.73949576 |
| 5 |
28129 |
2440 |
- |
2528 |
= |
-88 |
* |
(79 |
/ |
238)
|
= |
-29.21008402 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Alta Loma Elementary
|
-63 |
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 |
28304 |
2390 |
- |
2436 |
= |
-46 |
* |
(60 |
/ |
213)
|
= |
-12.95774644 |
| 4 |
28305 |
2437 |
- |
2485 |
= |
-48 |
* |
(76 |
/ |
213)
|
= |
-17.12676053 |
| 5 |
28306 |
2468 |
- |
2528 |
= |
-60 |
* |
(77 |
/ |
213)
|
= |
-21.69014082 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Alta Loma Elementary
|
-52 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-66
|
-71
|
-69
|
-63
|
-52
|
-321.0 |
-64.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -43.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -85.2
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:
