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 |
975362 |
2341 |
- |
2436 |
= |
-95 |
* |
(90 |
/ |
239)
|
= |
-35.77405852 |
| 4 |
975365 |
2382 |
- |
2485 |
= |
-103 |
* |
(77 |
/ |
239)
|
= |
-33.1841004 |
| 5 |
975366 |
2404 |
- |
2528 |
= |
-124 |
* |
(72 |
/ |
239)
|
= |
-37.35564852 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Western Avenue Technology Magnet
|
-106 |
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 |
30867 |
2369 |
- |
2436 |
= |
-67 |
* |
(101 |
/ |
265)
|
= |
-25.53584903 |
| 4 |
30868 |
2385 |
- |
2485 |
= |
-100 |
* |
(84 |
/ |
265)
|
= |
-31.6981132 |
| 5 |
30871 |
2393 |
- |
2528 |
= |
-135 |
* |
(80 |
/ |
265)
|
= |
-40.75471692 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Western Avenue Technology Magnet
|
-98 |
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 |
31431 |
2373 |
- |
2436 |
= |
-63 |
* |
(79 |
/ |
265)
|
= |
-18.78113204 |
| 4 |
31433 |
2402 |
- |
2485 |
= |
-83 |
* |
(100 |
/ |
265)
|
= |
-31.32075467 |
| 5 |
31435 |
2398 |
- |
2528 |
= |
-130 |
* |
(86 |
/ |
265)
|
= |
-42.18867913 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Western Avenue Technology Magnet
|
-92 |
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 |
31479 |
2359 |
- |
2436 |
= |
-77 |
* |
(64 |
/ |
236)
|
= |
-20.88135588 |
| 4 |
31481 |
2393 |
- |
2485 |
= |
-92 |
* |
(75 |
/ |
236)
|
= |
-29.23728812 |
| 5 |
31482 |
2434 |
- |
2528 |
= |
-94 |
* |
(97 |
/ |
236)
|
= |
-38.63559321 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Western Avenue Technology Magnet
|
-89 |
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 |
31656 |
2354 |
- |
2436 |
= |
-82 |
* |
(94 |
/ |
241)
|
= |
-31.98340243 |
| 4 |
31657 |
2391 |
- |
2485 |
= |
-94 |
* |
(66 |
/ |
241)
|
= |
-25.74273857 |
| 5 |
31658 |
2409 |
- |
2528 |
= |
-119 |
* |
(81 |
/ |
241)
|
= |
-39.99585062 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Western Avenue Technology Magnet
|
-98 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-106
|
-98
|
-92
|
-89
|
-98
|
-483.0 |
-96.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -78.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -114.6
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:
