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 |
2310204 |
2421 |
- |
2436 |
= |
-15 |
* |
(23 |
/ |
126) |
= |
-2.73809523 |
4 |
2310207 |
2437 |
- |
2485 |
= |
-48 |
* |
(22 |
/ |
126) |
= |
-8.38095235 |
5 |
2310208 |
2455 |
- |
2528 |
= |
-73 |
* |
(30 |
/ |
126) |
= |
-17.38095237 |
6 |
2310211 |
2501 |
- |
2552 |
= |
-51 |
* |
(19 |
/ |
126) |
= |
-7.69047615 |
7 |
2310212 |
2542 |
- |
2567 |
= |
-25 |
* |
(16 |
/ |
126) |
= |
-3.17460315 |
8 |
2310215 |
2521 |
- |
2586 |
= |
-65 |
* |
(16 |
/ |
126) |
= |
-8.25396819 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Vallecitos Elementary
|
-48 |
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 |
70709 |
2426 |
- |
2436 |
= |
-10 |
* |
(14 |
/ |
113) |
= |
-1.23893805 |
4 |
70712 |
2434 |
- |
2485 |
= |
-51 |
* |
(23 |
/ |
113) |
= |
-10.38053097 |
5 |
70714 |
2493 |
- |
2528 |
= |
-35 |
* |
(20 |
/ |
113) |
= |
-6.19469025 |
6 |
70716 |
2481 |
- |
2552 |
= |
-71 |
* |
(26 |
/ |
113) |
= |
-16.33628315 |
7 |
70718 |
2550 |
- |
2567 |
= |
-17 |
* |
(15 |
/ |
113) |
= |
-2.25663715 |
8 |
70719 |
2561 |
- |
2586 |
= |
-25 |
* |
(15 |
/ |
113) |
= |
-3.31858405 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Vallecitos Elementary
|
-40 |
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 |
72565 |
2458 |
- |
2436 |
= |
22 |
* |
(19 |
/ |
124) |
= |
3.37096773 |
4 |
72567 |
2431 |
- |
2485 |
= |
-54 |
* |
(15 |
/ |
124) |
= |
-6.53225801 |
5 |
72568 |
2475 |
- |
2528 |
= |
-53 |
* |
(23 |
/ |
124) |
= |
-9.83064511 |
6 |
72570 |
2526 |
- |
2552 |
= |
-26 |
* |
(23 |
/ |
124) |
= |
-4.82258062 |
7 |
72573 |
2544 |
- |
2567 |
= |
-23 |
* |
(28 |
/ |
124) |
= |
-5.19354837 |
8 |
72574 |
2599 |
- |
2586 |
= |
13 |
* |
(16 |
/ |
124) |
= |
1.67741935 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Vallecitos Elementary
|
-21 |
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 |
72696 |
2415 |
- |
2436 |
= |
-21 |
* |
(23 |
/ |
142) |
= |
-3.40140843 |
4 |
72697 |
2466 |
- |
2485 |
= |
-19 |
* |
(22 |
/ |
142) |
= |
-2.94366196 |
5 |
72700 |
2464 |
- |
2528 |
= |
-64 |
* |
(17 |
/ |
142) |
= |
-7.66197178 |
6 |
72701 |
2525 |
- |
2552 |
= |
-27 |
* |
(26 |
/ |
142) |
= |
-4.94366196 |
7 |
72704 |
2569 |
- |
2567 |
= |
2 |
* |
(25 |
/ |
142) |
= |
0.35211268 |
8 |
72705 |
2564 |
- |
2586 |
= |
-22 |
* |
(29 |
/ |
142) |
= |
-4.49295774 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Vallecitos Elementary
|
-23 |
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 |
73186 |
2460 |
- |
2436 |
= |
24 |
* |
(18 |
/ |
130) |
= |
3.32307691 |
4 |
73187 |
2440 |
- |
2485 |
= |
-45 |
* |
(24 |
/ |
130) |
= |
-8.30769228 |
5 |
73188 |
2501 |
- |
2528 |
= |
-27 |
* |
(21 |
/ |
130) |
= |
-4.36153845 |
6 |
73189 |
2470 |
- |
2552 |
= |
-82 |
* |
(20 |
/ |
130) |
= |
-12.61538455 |
7 |
73190 |
2566 |
- |
2567 |
= |
-1 |
* |
(24 |
/ |
130) |
= |
-0.18461538 |
8 |
73191 |
2594 |
- |
2586 |
= |
8 |
* |
(23 |
/ |
130) |
= |
1.41538461 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Vallecitos Elementary
|
-21 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-48
|
-40
|
-21
|
-23
|
-21
|
-153.0 |
-30.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 5.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -66.6
For the lines, you have the data necessary to plot the chart.