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 |
909620 |
2361 |
- |
2436 |
= |
-75 |
* |
(76 |
/ |
211)
|
= |
-27.01421798 |
| 4 |
909621 |
2397 |
- |
2485 |
= |
-88 |
* |
(73 |
/ |
211)
|
= |
-30.44549754 |
| 5 |
909624 |
2447 |
- |
2528 |
= |
-81 |
* |
(62 |
/ |
211)
|
= |
-23.80094782 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Glenwood Elementary
|
-81 |
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 |
28749 |
2377 |
- |
2436 |
= |
-59 |
* |
(60 |
/ |
201)
|
= |
-17.61194026 |
| 4 |
28750 |
2426 |
- |
2485 |
= |
-59 |
* |
(71 |
/ |
201)
|
= |
-20.84079597 |
| 5 |
28753 |
2459 |
- |
2528 |
= |
-69 |
* |
(70 |
/ |
201)
|
= |
-24.02985071 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Glenwood Elementary
|
-62 |
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 |
29314 |
2383 |
- |
2436 |
= |
-53 |
* |
(58 |
/ |
176)
|
= |
-17.46590906 |
| 4 |
29315 |
2431 |
- |
2485 |
= |
-54 |
* |
(58 |
/ |
176)
|
= |
-17.79545452 |
| 5 |
29317 |
2455 |
- |
2528 |
= |
-73 |
* |
(60 |
/ |
176)
|
= |
-24.88636357 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Glenwood Elementary
|
-60 |
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 |
29363 |
2374 |
- |
2436 |
= |
-62 |
* |
(48 |
/ |
155)
|
= |
-19.19999998 |
| 4 |
29365 |
2437 |
- |
2485 |
= |
-48 |
* |
(55 |
/ |
155)
|
= |
-17.03225803 |
| 5 |
29367 |
2452 |
- |
2528 |
= |
-76 |
* |
(52 |
/ |
155)
|
= |
-25.49677412 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Glenwood Elementary
|
-62 |
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 |
29538 |
2382 |
- |
2436 |
= |
-54 |
* |
(37 |
/ |
137)
|
= |
-14.58394157 |
| 4 |
29539 |
2432 |
- |
2485 |
= |
-53 |
* |
(44 |
/ |
137)
|
= |
-17.0218978 |
| 5 |
29540 |
2479 |
- |
2528 |
= |
-49 |
* |
(56 |
/ |
137)
|
= |
-20.02919708 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Glenwood Elementary
|
-52 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-81
|
-62
|
-60
|
-62
|
-52
|
-317.0 |
-63.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -33.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.4
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:
