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 |
216006 |
2379 |
- |
2436 |
= |
-57 |
* |
(87 |
/ |
243)
|
= |
-20.40740739 |
| 4 |
216009 |
2450 |
- |
2485 |
= |
-35 |
* |
(78 |
/ |
243)
|
= |
-11.23456789 |
| 5 |
216010 |
2454 |
- |
2528 |
= |
-74 |
* |
(78 |
/ |
243)
|
= |
-23.7530864 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Ygnacio Valley Elementary
|
-55 |
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 |
6390 |
2401 |
- |
2436 |
= |
-35 |
* |
(63 |
/ |
222)
|
= |
-9.93243241 |
| 4 |
6391 |
2423 |
- |
2485 |
= |
-62 |
* |
(85 |
/ |
222)
|
= |
-23.73873868 |
| 5 |
6393 |
2469 |
- |
2528 |
= |
-59 |
* |
(74 |
/ |
222)
|
= |
-19.66666665 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Ygnacio Valley Elementary
|
-53 |
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 |
6565 |
2398 |
- |
2436 |
= |
-38 |
* |
(85 |
/ |
230)
|
= |
-14.04347825 |
| 4 |
6567 |
2445 |
- |
2485 |
= |
-40 |
* |
(64 |
/ |
230)
|
= |
-11.13043476 |
| 5 |
6569 |
2413 |
- |
2528 |
= |
-115 |
* |
(81 |
/ |
230)
|
= |
-40.5 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Ygnacio Valley Elementary
|
-66 |
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 |
6569 |
2387 |
- |
2436 |
= |
-49 |
* |
(66 |
/ |
202)
|
= |
-16.00990098 |
| 4 |
6572 |
2431 |
- |
2485 |
= |
-54 |
* |
(81 |
/ |
202)
|
= |
-21.65346535 |
| 5 |
6573 |
2446 |
- |
2528 |
= |
-82 |
* |
(55 |
/ |
202)
|
= |
-22.32673261 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Ygnacio Valley Elementary
|
-60 |
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 |
6625 |
2393 |
- |
2436 |
= |
-43 |
* |
(69 |
/ |
219)
|
= |
-13.5479452 |
| 4 |
6626 |
2439 |
- |
2485 |
= |
-46 |
* |
(71 |
/ |
219)
|
= |
-14.913242 |
| 5 |
6627 |
2434 |
- |
2528 |
= |
-94 |
* |
(79 |
/ |
219)
|
= |
-33.90867574 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Ygnacio Valley Elementary
|
-62 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-55
|
-53
|
-66
|
-60
|
-62
|
-296.0 |
-59.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -44.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -74.2
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:
