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 |
2264092 |
2396 |
- |
2436 |
= |
-40 |
* |
(52 |
/ |
175)
|
= |
-11.88571428 |
4 |
2264093 |
2406 |
- |
2485 |
= |
-79 |
* |
(40 |
/ |
175)
|
= |
-18.05714281 |
5 |
2264096 |
2467 |
- |
2528 |
= |
-61 |
* |
(35 |
/ |
175)
|
= |
-12.2 |
6 |
2264097 |
2517 |
- |
2552 |
= |
-35 |
* |
(48 |
/ |
175)
|
= |
-9.59999999 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Webster Elementary
|
-52 |
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 |
69469 |
2404 |
- |
2436 |
= |
-32 |
* |
(51 |
/ |
175)
|
= |
-9.32571427 |
4 |
69472 |
2419 |
- |
2485 |
= |
-66 |
* |
(55 |
/ |
175)
|
= |
-20.74285712 |
5 |
69473 |
2480 |
- |
2528 |
= |
-48 |
* |
(40 |
/ |
175)
|
= |
-10.97142854 |
6 |
69475 |
2504 |
- |
2552 |
= |
-48 |
* |
(29 |
/ |
175)
|
= |
-7.95428568 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Webster Elementary
|
-49 |
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 |
71302 |
2372 |
- |
2436 |
= |
-64 |
* |
(50 |
/ |
179)
|
= |
-17.87709491 |
4 |
71305 |
2452 |
- |
2485 |
= |
-33 |
* |
(46 |
/ |
179)
|
= |
-8.48044692 |
5 |
71306 |
2475 |
- |
2528 |
= |
-53 |
* |
(52 |
/ |
179)
|
= |
-15.39664803 |
6 |
71308 |
2511 |
- |
2552 |
= |
-41 |
* |
(31 |
/ |
179)
|
= |
-7.10055864 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Webster Elementary
|
-49 |
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 |
71447 |
2385 |
- |
2436 |
= |
-51 |
* |
(46 |
/ |
174)
|
= |
-13.48275862 |
4 |
71449 |
2415 |
- |
2485 |
= |
-70 |
* |
(48 |
/ |
174)
|
= |
-19.31034476 |
5 |
71451 |
2485 |
- |
2528 |
= |
-43 |
* |
(44 |
/ |
174)
|
= |
-10.87356321 |
6 |
71453 |
2490 |
- |
2552 |
= |
-62 |
* |
(36 |
/ |
174)
|
= |
-12.82758616 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Webster Elementary
|
-56 |
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 |
71935 |
2392 |
- |
2436 |
= |
-44 |
* |
(49 |
/ |
135)
|
= |
-15.97037033 |
4 |
71936 |
2423 |
- |
2485 |
= |
-62 |
* |
(41 |
/ |
135)
|
= |
-18.82962959 |
5 |
71937 |
2486 |
- |
2528 |
= |
-42 |
* |
(45 |
/ |
135)
|
= |
-13.99999999 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Webster Elementary
|
-49 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-52
|
-49
|
-49
|
-56
|
-49
|
-255.0 |
-51.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -42.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -60.0
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: