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 |
477707 |
2359 |
- |
2436 |
= |
-77 |
* |
(77 |
/ |
219)
|
= |
-27.07305932 |
4 |
477710 |
2384 |
- |
2485 |
= |
-101 |
* |
(70 |
/ |
219)
|
= |
-32.283105 |
5 |
477711 |
2403 |
- |
2528 |
= |
-125 |
* |
(72 |
/ |
219)
|
= |
-41.09589038 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Williams Elementary
|
-100 |
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 |
15154 |
2374 |
- |
2436 |
= |
-62 |
* |
(72 |
/ |
212)
|
= |
-21.05660374 |
4 |
15156 |
2403 |
- |
2485 |
= |
-82 |
* |
(72 |
/ |
212)
|
= |
-27.84905656 |
5 |
15158 |
2444 |
- |
2528 |
= |
-84 |
* |
(68 |
/ |
212)
|
= |
-26.94339614 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Williams Elementary
|
-76 |
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 |
15471 |
2371 |
- |
2436 |
= |
-65 |
* |
(97 |
/ |
236)
|
= |
-26.71610169 |
4 |
15473 |
2406 |
- |
2485 |
= |
-79 |
* |
(61 |
/ |
236)
|
= |
-20.4194915 |
5 |
15475 |
2434 |
- |
2528 |
= |
-94 |
* |
(78 |
/ |
236)
|
= |
-31.06779656 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Williams Elementary
|
-78 |
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 |
15491 |
2411 |
- |
2436 |
= |
-25 |
* |
(62 |
/ |
212)
|
= |
-7.31132075 |
4 |
15494 |
2408 |
- |
2485 |
= |
-77 |
* |
(95 |
/ |
212)
|
= |
-34.50471694 |
5 |
15495 |
2483 |
- |
2528 |
= |
-45 |
* |
(55 |
/ |
212)
|
= |
-11.67452829 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Williams Elementary
|
-53 |
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 |
15605 |
2385 |
- |
2436 |
= |
-51 |
* |
(64 |
/ |
228)
|
= |
-14.31578945 |
4 |
15606 |
2421 |
- |
2485 |
= |
-64 |
* |
(72 |
/ |
228)
|
= |
-20.21052627 |
5 |
15607 |
2397 |
- |
2528 |
= |
-131 |
* |
(92 |
/ |
228)
|
= |
-52.859649 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Williams Elementary
|
-87 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-100
|
-76
|
-78
|
-53
|
-87
|
-394.0 |
-78.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -27.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -129.8
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: