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 |
433940 |
2399 |
- |
2436 |
= |
-37 |
* |
(424 |
/ |
2440) |
= |
-6.42950817 |
4 |
433943 |
2426 |
- |
2485 |
= |
-59 |
* |
(419 |
/ |
2440) |
= |
-10.13155735 |
5 |
433944 |
2453 |
- |
2528 |
= |
-75 |
* |
(409 |
/ |
2440) |
= |
-12.57172125 |
6 |
433947 |
2463 |
- |
2552 |
= |
-89 |
* |
(397 |
/ |
2440) |
= |
-14.4807377 |
7 |
433948 |
2475 |
- |
2567 |
= |
-92 |
* |
(377 |
/ |
2440) |
= |
-14.21475403 |
8 |
433951 |
2492 |
- |
2586 |
= |
-94 |
* |
(414 |
/ |
2440) |
= |
-15.94918031 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Brawley Elementary
|
-74 |
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 |
13634 |
2393 |
- |
2436 |
= |
-43 |
* |
(382 |
/ |
2393) |
= |
-6.86418718 |
4 |
13636 |
2439 |
- |
2485 |
= |
-46 |
* |
(409 |
/ |
2393) |
= |
-7.86209777 |
5 |
13637 |
2449 |
- |
2528 |
= |
-79 |
* |
(425 |
/ |
2393) |
= |
-14.03050562 |
6 |
13640 |
2489 |
- |
2552 |
= |
-63 |
* |
(403 |
/ |
2393) |
= |
-10.60969493 |
7 |
13642 |
2465 |
- |
2567 |
= |
-102 |
* |
(402 |
/ |
2393) |
= |
-17.13497694 |
8 |
13644 |
2495 |
- |
2586 |
= |
-91 |
* |
(372 |
/ |
2393) |
= |
-14.14625986 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Brawley Elementary
|
-71 |
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 |
13971 |
2418 |
- |
2436 |
= |
-18 |
* |
(431 |
/ |
2498) |
= |
-3.10568454 |
4 |
13973 |
2453 |
- |
2485 |
= |
-32 |
* |
(364 |
/ |
2498) |
= |
-4.66293034 |
5 |
13975 |
2460 |
- |
2528 |
= |
-68 |
* |
(423 |
/ |
2498) |
= |
-11.51481182 |
6 |
13977 |
2506 |
- |
2552 |
= |
-46 |
* |
(431 |
/ |
2498) |
= |
-7.93674938 |
7 |
13979 |
2470 |
- |
2567 |
= |
-97 |
* |
(429 |
/ |
2498) |
= |
-16.65852673 |
8 |
13981 |
2491 |
- |
2586 |
= |
-95 |
* |
(420 |
/ |
2498) |
= |
-15.97277817 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Brawley Elementary
|
-60 |
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 |
13972 |
2427 |
- |
2436 |
= |
-9 |
* |
(435 |
/ |
2629) |
= |
-1.48915937 |
4 |
13975 |
2452 |
- |
2485 |
= |
-33 |
* |
(454 |
/ |
2629) |
= |
-5.69874476 |
5 |
13976 |
2462 |
- |
2528 |
= |
-66 |
* |
(396 |
/ |
2629) |
= |
-9.94142259 |
6 |
13979 |
2487 |
- |
2552 |
= |
-65 |
* |
(440 |
/ |
2629) |
= |
-10.87866104 |
7 |
13980 |
2483 |
- |
2567 |
= |
-84 |
* |
(469 |
/ |
2629) |
= |
-14.98516538 |
8 |
13983 |
2486 |
- |
2586 |
= |
-100 |
* |
(435 |
/ |
2629) |
= |
-16.5462152 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Brawley Elementary
|
-60 |
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 |
14092 |
2427 |
- |
2436 |
= |
-9 |
* |
(452 |
/ |
2685) |
= |
-1.5150838 |
4 |
14093 |
2459 |
- |
2485 |
= |
-26 |
* |
(437 |
/ |
2685) |
= |
-4.23165735 |
5 |
14094 |
2474 |
- |
2528 |
= |
-54 |
* |
(452 |
/ |
2685) |
= |
-9.09050278 |
6 |
14095 |
2503 |
- |
2552 |
= |
-49 |
* |
(410 |
/ |
2685) |
= |
-7.48230911 |
7 |
14096 |
2491 |
- |
2567 |
= |
-76 |
* |
(460 |
/ |
2685) |
= |
-13.02048416 |
8 |
14097 |
2498 |
- |
2586 |
= |
-88 |
* |
(474 |
/ |
2685) |
= |
-15.53519546 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Brawley Elementary
|
-51 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-74
|
-71
|
-60
|
-60
|
-51
|
-316.0 |
-63.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -36.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -90.2
For the lines, you have the data necessary to plot the chart.