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 |
939998 |
2373 |
- |
2436 |
= |
-63 |
* |
(71 |
/ |
220)
|
= |
-20.33181814 |
| 4 |
939999 |
2387 |
- |
2485 |
= |
-98 |
* |
(76 |
/ |
220)
|
= |
-33.85454541 |
| 5 |
940002 |
2423 |
- |
2528 |
= |
-105 |
* |
(73 |
/ |
220)
|
= |
-34.84090901 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for One Hundred Ninth Street Elementary
|
-89 |
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 |
29732 |
2359 |
- |
2436 |
= |
-77 |
* |
(81 |
/ |
224)
|
= |
-27.84374993 |
| 4 |
29735 |
2400 |
- |
2485 |
= |
-85 |
* |
(66 |
/ |
224)
|
= |
-25.04464285 |
| 5 |
29737 |
2382 |
- |
2528 |
= |
-146 |
* |
(77 |
/ |
224)
|
= |
-50.1875 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for One Hundred Ninth Street Elementary
|
-103 |
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 |
30298 |
2349 |
- |
2436 |
= |
-87 |
* |
(71 |
/ |
199)
|
= |
-31.04020095 |
| 4 |
30300 |
2387 |
- |
2485 |
= |
-98 |
* |
(72 |
/ |
199)
|
= |
-35.45728641 |
| 5 |
30301 |
2392 |
- |
2528 |
= |
-136 |
* |
(56 |
/ |
199)
|
= |
-38.27135676 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for One Hundred Ninth Street Elementary
|
-105 |
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 |
30348 |
2374 |
- |
2436 |
= |
-62 |
* |
(64 |
/ |
202)
|
= |
-19.64356435 |
| 4 |
30350 |
2379 |
- |
2485 |
= |
-106 |
* |
(69 |
/ |
202)
|
= |
-36.20792075 |
| 5 |
30352 |
2394 |
- |
2528 |
= |
-134 |
* |
(69 |
/ |
202)
|
= |
-45.77227717 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for One Hundred Ninth Street Elementary
|
-102 |
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 |
30522 |
2382 |
- |
2436 |
= |
-54 |
* |
(56 |
/ |
187)
|
= |
-16.17112296 |
| 4 |
30523 |
2400 |
- |
2485 |
= |
-85 |
* |
(62 |
/ |
187)
|
= |
-28.18181817 |
| 5 |
30524 |
2407 |
- |
2528 |
= |
-121 |
* |
(69 |
/ |
187)
|
= |
-44.6470588 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for One Hundred Ninth Street Elementary
|
-89 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-89
|
-103
|
-105
|
-102
|
-89
|
-488.0 |
-97.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -76.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -118.6
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:
