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 |
2745190 |
2380 |
- |
2436 |
= |
-56 |
* |
(1712 |
/ |
10184) |
= |
-9.4139827 |
4 |
2745193 |
2424 |
- |
2485 |
= |
-61 |
* |
(1589 |
/ |
10184) |
= |
-9.51777297 |
5 |
2745194 |
2455 |
- |
2528 |
= |
-73 |
* |
(1602 |
/ |
10184) |
= |
-11.48330712 |
6 |
2745197 |
2463 |
- |
2552 |
= |
-89 |
* |
(1474 |
/ |
10184) |
= |
-12.88157894 |
7 |
2745198 |
2488 |
- |
2567 |
= |
-79 |
* |
(1391 |
/ |
10184) |
= |
-10.79035736 |
8 |
2745201 |
2507 |
- |
2586 |
= |
-79 |
* |
(1347 |
/ |
10184) |
= |
-10.4490377 |
11 |
2745202 |
2526 |
- |
2628 |
= |
-102 |
* |
(1069 |
/ |
10184) |
= |
-10.70679496 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Pajaro Valley Unified
|
-75 |
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 |
83476 |
2387 |
- |
2436 |
= |
-49 |
* |
(1682 |
/ |
10383) |
= |
-7.93778288 |
4 |
83479 |
2422 |
- |
2485 |
= |
-63 |
* |
(1709 |
/ |
10383) |
= |
-10.36954636 |
5 |
83481 |
2455 |
- |
2528 |
= |
-73 |
* |
(1604 |
/ |
10383) |
= |
-11.2772801 |
6 |
83482 |
2463 |
- |
2552 |
= |
-89 |
* |
(1500 |
/ |
10383) |
= |
-12.85755561 |
7 |
83484 |
2486 |
- |
2567 |
= |
-81 |
* |
(1436 |
/ |
10383) |
= |
-11.2025426 |
8 |
83487 |
2503 |
- |
2586 |
= |
-83 |
* |
(1365 |
/ |
10383) |
= |
-10.9115862 |
11 |
83488 |
2533 |
- |
2628 |
= |
-95 |
* |
(1087 |
/ |
10383) |
= |
-9.94558411 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Pajaro Valley Unified
|
-75 |
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 |
85799 |
2392 |
- |
2436 |
= |
-44 |
* |
(1596 |
/ |
10442) |
= |
-6.72514841 |
4 |
85801 |
2422 |
- |
2485 |
= |
-63 |
* |
(1648 |
/ |
10442) |
= |
-9.94292277 |
5 |
85802 |
2445 |
- |
2528 |
= |
-83 |
* |
(1703 |
/ |
10442) |
= |
-13.53658296 |
6 |
85805 |
2459 |
- |
2552 |
= |
-93 |
* |
(1504 |
/ |
10442) |
= |
-13.39513503 |
7 |
85806 |
2478 |
- |
2567 |
= |
-89 |
* |
(1443 |
/ |
10442) |
= |
-12.29908061 |
8 |
85809 |
2489 |
- |
2586 |
= |
-97 |
* |
(1408 |
/ |
10442) |
= |
-13.0794866 |
11 |
85810 |
2532 |
- |
2628 |
= |
-96 |
* |
(1140 |
/ |
10442) |
= |
-10.48075075 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Pajaro Valley Unified
|
-79 |
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 |
86025 |
2397 |
- |
2436 |
= |
-39 |
* |
(1527 |
/ |
10351) |
= |
-5.75335714 |
4 |
86028 |
2429 |
- |
2485 |
= |
-56 |
* |
(1577 |
/ |
10351) |
= |
-8.53173602 |
5 |
86029 |
2455 |
- |
2528 |
= |
-73 |
* |
(1624 |
/ |
10351) |
= |
-11.45319287 |
6 |
86032 |
2459 |
- |
2552 |
= |
-93 |
* |
(1558 |
/ |
10351) |
= |
-13.99806779 |
7 |
86033 |
2478 |
- |
2567 |
= |
-89 |
* |
(1435 |
/ |
10351) |
= |
-12.33842137 |
8 |
86036 |
2491 |
- |
2586 |
= |
-95 |
* |
(1440 |
/ |
10351) |
= |
-13.21611434 |
11 |
86037 |
2530 |
- |
2628 |
= |
-98 |
* |
(1190 |
/ |
10351) |
= |
-11.26654423 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Pajaro Valley Unified
|
-77 |
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 |
86622 |
2396 |
- |
2436 |
= |
-40 |
* |
(1484 |
/ |
10155) |
= |
-5.84539632 |
4 |
86623 |
2439 |
- |
2485 |
= |
-46 |
* |
(1496 |
/ |
10155) |
= |
-6.77656323 |
5 |
86624 |
2460 |
- |
2528 |
= |
-68 |
* |
(1541 |
/ |
10155) |
= |
-10.31885768 |
6 |
86625 |
2464 |
- |
2552 |
= |
-88 |
* |
(1499 |
/ |
10155) |
= |
-12.98985714 |
7 |
86626 |
2475 |
- |
2567 |
= |
-92 |
* |
(1507 |
/ |
10155) |
= |
-13.65278188 |
8 |
86627 |
2489 |
- |
2586 |
= |
-97 |
* |
(1411 |
/ |
10155) |
= |
-13.47779411 |
11 |
86628 |
2525 |
- |
2628 |
= |
-103 |
* |
(1217 |
/ |
10155) |
= |
-12.34377153 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Pajaro Valley Unified
|
-75 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-75
|
-75
|
-79
|
-77
|
-75
|
-381.0 |
-76.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -73.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -79.2
For the lines, you have the data necessary to plot the chart.