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 |
1752212 |
2366 |
- |
2436 |
= |
-70 |
* |
(1610 |
/ |
10242) |
= |
-11.0037102 |
4 |
1752215 |
2403 |
- |
2485 |
= |
-82 |
* |
(1599 |
/ |
10242) |
= |
-12.80199178 |
5 |
1752216 |
2424 |
- |
2528 |
= |
-104 |
* |
(1506 |
/ |
10242) |
= |
-15.29232567 |
6 |
1752219 |
2448 |
- |
2552 |
= |
-104 |
* |
(1540 |
/ |
10242) |
= |
-15.63757073 |
7 |
1752220 |
2441 |
- |
2567 |
= |
-126 |
* |
(1458 |
/ |
10242) |
= |
-17.93673101 |
8 |
1752223 |
2465 |
- |
2586 |
= |
-121 |
* |
(1377 |
/ |
10242) |
= |
-16.26801404 |
11 |
1752224 |
2498 |
- |
2628 |
= |
-130 |
* |
(1152 |
/ |
10242) |
= |
-14.62214403 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Coachella Valley Unified
|
-104 |
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 |
54434 |
2384 |
- |
2436 |
= |
-52 |
* |
(1499 |
/ |
10276) |
= |
-7.58544176 |
4 |
54437 |
2409 |
- |
2485 |
= |
-76 |
* |
(1617 |
/ |
10276) |
= |
-11.95912805 |
5 |
54438 |
2424 |
- |
2528 |
= |
-104 |
* |
(1615 |
/ |
10276) |
= |
-16.34488118 |
6 |
54441 |
2458 |
- |
2552 |
= |
-94 |
* |
(1489 |
/ |
10276) |
= |
-13.62066947 |
7 |
54442 |
2442 |
- |
2567 |
= |
-125 |
* |
(1484 |
/ |
10276) |
= |
-18.051771 |
8 |
54444 |
2468 |
- |
2586 |
= |
-118 |
* |
(1447 |
/ |
10276) |
= |
-16.61599843 |
11 |
54446 |
2503 |
- |
2628 |
= |
-125 |
* |
(1125 |
/ |
10276) |
= |
-13.6847995 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Coachella Valley Unified
|
-98 |
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 |
56029 |
2395 |
- |
2436 |
= |
-41 |
* |
(1381 |
/ |
10247) |
= |
-5.52561723 |
4 |
56032 |
2419 |
- |
2485 |
= |
-66 |
* |
(1511 |
/ |
10247) |
= |
-9.73221427 |
5 |
56033 |
2434 |
- |
2528 |
= |
-94 |
* |
(1608 |
/ |
10247) |
= |
-14.75085384 |
6 |
56036 |
2451 |
- |
2552 |
= |
-101 |
* |
(1584 |
/ |
10247) |
= |
-15.61276463 |
7 |
56038 |
2454 |
- |
2567 |
= |
-113 |
* |
(1436 |
/ |
10247) |
= |
-15.8356592 |
8 |
56040 |
2451 |
- |
2586 |
= |
-135 |
* |
(1459 |
/ |
10247) |
= |
-19.22172336 |
11 |
56041 |
2505 |
- |
2628 |
= |
-123 |
* |
(1268 |
/ |
10247) |
= |
-15.22045468 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Coachella Valley Unified
|
-96 |
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 |
56129 |
2397 |
- |
2436 |
= |
-39 |
* |
(1352 |
/ |
9872) |
= |
-5.34116692 |
4 |
56131 |
2426 |
- |
2485 |
= |
-59 |
* |
(1392 |
/ |
9872) |
= |
-8.31928686 |
5 |
56133 |
2440 |
- |
2528 |
= |
-88 |
* |
(1494 |
/ |
9872) |
= |
-13.31766612 |
6 |
56135 |
2463 |
- |
2552 |
= |
-89 |
* |
(1574 |
/ |
9872) |
= |
-14.19023494 |
7 |
56137 |
2453 |
- |
2567 |
= |
-114 |
* |
(1474 |
/ |
9872) |
= |
-17.02147486 |
8 |
56138 |
2468 |
- |
2586 |
= |
-118 |
* |
(1409 |
/ |
9872) |
= |
-16.84177467 |
11 |
56141 |
2507 |
- |
2628 |
= |
-121 |
* |
(1177 |
/ |
9872) |
= |
-14.42635737 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Coachella Valley Unified
|
-89 |
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 |
56391 |
2405 |
- |
2436 |
= |
-31 |
* |
(1390 |
/ |
9760) |
= |
-4.41495899 |
4 |
56392 |
2426 |
- |
2485 |
= |
-59 |
* |
(1342 |
/ |
9760) |
= |
-8.1125 |
5 |
56393 |
2444 |
- |
2528 |
= |
-84 |
* |
(1383 |
/ |
9760) |
= |
-11.9028688 |
6 |
56394 |
2465 |
- |
2552 |
= |
-87 |
* |
(1472 |
/ |
9760) |
= |
-13.12131146 |
7 |
56395 |
2453 |
- |
2567 |
= |
-114 |
* |
(1484 |
/ |
9760) |
= |
-17.33360652 |
8 |
56396 |
2468 |
- |
2586 |
= |
-118 |
* |
(1448 |
/ |
9760) |
= |
-17.50655729 |
11 |
56397 |
2503 |
- |
2628 |
= |
-125 |
* |
(1241 |
/ |
9760) |
= |
-15.89395488 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Coachella Valley Unified
|
-88 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-104
|
-98
|
-96
|
-89
|
-88
|
-475.0 |
-95.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -77.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -113.0
For the lines, you have the data necessary to plot the chart.