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 |
798518 |
2360 |
- |
2436 |
= |
-76 |
* |
(82 |
/ |
226)
|
= |
-27.57522121 |
4 |
798519 |
2413 |
- |
2485 |
= |
-72 |
* |
(63 |
/ |
226)
|
= |
-20.07079639 |
5 |
798522 |
2407 |
- |
2528 |
= |
-121 |
* |
(81 |
/ |
226)
|
= |
-43.36725656 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for John W. Mack Elementary
|
-91 |
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 |
24965 |
2386 |
- |
2436 |
= |
-50 |
* |
(72 |
/ |
203)
|
= |
-17.7339901 |
4 |
24967 |
2389 |
- |
2485 |
= |
-96 |
* |
(77 |
/ |
203)
|
= |
-36.41379302 |
5 |
24968 |
2413 |
- |
2528 |
= |
-115 |
* |
(54 |
/ |
203)
|
= |
-30.59113298 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for John W. Mack Elementary
|
-85 |
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 |
25461 |
2347 |
- |
2436 |
= |
-89 |
* |
(57 |
/ |
210)
|
= |
-24.15714282 |
4 |
25464 |
2379 |
- |
2485 |
= |
-106 |
* |
(72 |
/ |
210)
|
= |
-36.34285705 |
5 |
25465 |
2403 |
- |
2528 |
= |
-125 |
* |
(81 |
/ |
210)
|
= |
-48.21428563 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for John W. Mack Elementary
|
-109 |
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 |
25489 |
2371 |
- |
2436 |
= |
-65 |
* |
(48 |
/ |
172)
|
= |
-18.13953486 |
4 |
25491 |
2379 |
- |
2485 |
= |
-106 |
* |
(56 |
/ |
172)
|
= |
-34.51162787 |
5 |
25493 |
2409 |
- |
2528 |
= |
-119 |
* |
(68 |
/ |
172)
|
= |
-47.0465116 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for John W. Mack Elementary
|
-100 |
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 |
25650 |
2367 |
- |
2436 |
= |
-69 |
* |
(59 |
/ |
162)
|
= |
-25.12962957 |
4 |
25651 |
2407 |
- |
2485 |
= |
-78 |
* |
(49 |
/ |
162)
|
= |
-23.59259253 |
5 |
25652 |
2412 |
- |
2528 |
= |
-116 |
* |
(54 |
/ |
162)
|
= |
-38.66666663 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for John W. Mack Elementary
|
-87 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-91
|
-85
|
-109
|
-100
|
-87
|
-472.0 |
-94.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -67.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -121.4
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: