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 |
2361569 |
2389 |
- |
2436 |
= |
-47 |
* |
(57 |
/ |
128)
|
= |
-20.9296875 |
| 4 |
2361570 |
2440 |
- |
2485 |
= |
-45 |
* |
(41 |
/ |
128)
|
= |
-14.4140625 |
| 5 |
2361573 |
2471 |
- |
2528 |
= |
-57 |
* |
(30 |
/ |
128)
|
= |
-13.359375 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Webster (Daniel) Elementary
|
-49 |
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 |
72154 |
2387 |
- |
2436 |
= |
-49 |
* |
(39 |
/ |
114)
|
= |
-16.76315789 |
| 4 |
72156 |
2406 |
- |
2485 |
= |
-79 |
* |
(46 |
/ |
114)
|
= |
-31.87719291 |
| 5 |
72158 |
2436 |
- |
2528 |
= |
-92 |
* |
(29 |
/ |
114)
|
= |
-23.40350869 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Webster (Daniel) Elementary
|
-72 |
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 |
74128 |
2441 |
- |
2436 |
= |
5 |
* |
(45 |
/ |
121)
|
= |
1.85950413 |
| 4 |
74130 |
2424 |
- |
2485 |
= |
-61 |
* |
(37 |
/ |
121)
|
= |
-18.6528925 |
| 5 |
74132 |
2426 |
- |
2528 |
= |
-102 |
* |
(39 |
/ |
121)
|
= |
-32.876033 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Webster (Daniel) Elementary
|
-50 |
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 |
74301 |
2381 |
- |
2436 |
= |
-55 |
* |
(39 |
/ |
125)
|
= |
-17.16 |
| 4 |
74304 |
2459 |
- |
2485 |
= |
-26 |
* |
(47 |
/ |
125)
|
= |
-9.776 |
| 5 |
74305 |
2461 |
- |
2528 |
= |
-67 |
* |
(39 |
/ |
125)
|
= |
-20.904 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Webster (Daniel) Elementary
|
-48 |
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 |
74825 |
2451 |
- |
2436 |
= |
15 |
* |
(52 |
/ |
136)
|
= |
5.73529412 |
| 4 |
74826 |
2451 |
- |
2485 |
= |
-34 |
* |
(41 |
/ |
136)
|
= |
-10.24999999 |
| 5 |
74827 |
2504 |
- |
2528 |
= |
-24 |
* |
(43 |
/ |
136)
|
= |
-7.58823528 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Webster (Daniel) Elementary
|
-12 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-49
|
-72
|
-50
|
-48
|
-12
|
-231.0 |
-46.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 16.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -109.2
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:
