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 |
756242 |
2417 |
- |
2436 |
= |
-19 |
* |
(515 |
/ |
3013) |
= |
-3.24759375 |
4 |
756245 |
2453 |
- |
2485 |
= |
-32 |
* |
(456 |
/ |
3013) |
= |
-4.8430136 |
5 |
756246 |
2476 |
- |
2528 |
= |
-52 |
* |
(508 |
/ |
3013) |
= |
-8.76734149 |
6 |
756249 |
2508 |
- |
2552 |
= |
-44 |
* |
(506 |
/ |
3013) |
= |
-7.38931296 |
7 |
756250 |
2514 |
- |
2567 |
= |
-53 |
* |
(505 |
/ |
3013) |
= |
-8.88317291 |
8 |
756253 |
2523 |
- |
2586 |
= |
-63 |
* |
(523 |
/ |
3013) |
= |
-10.93561232 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Little Lake City Elementary
|
-44 |
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 |
23763 |
2431 |
- |
2436 |
= |
-5 |
* |
(476 |
/ |
2957) |
= |
-0.8048698 |
4 |
23764 |
2468 |
- |
2485 |
= |
-17 |
* |
(517 |
/ |
2957) |
= |
-2.97226919 |
5 |
23767 |
2503 |
- |
2528 |
= |
-25 |
* |
(436 |
/ |
2957) |
= |
-3.6861684 |
6 |
23768 |
2514 |
- |
2552 |
= |
-38 |
* |
(514 |
/ |
2957) |
= |
-6.60534324 |
7 |
23770 |
2510 |
- |
2567 |
= |
-57 |
* |
(518 |
/ |
2957) |
= |
-9.98512001 |
8 |
23772 |
2541 |
- |
2586 |
= |
-45 |
* |
(496 |
/ |
2957) |
= |
-7.5481907 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Little Lake City Elementary
|
-32 |
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 |
24258 |
2441 |
- |
2436 |
= |
5 |
* |
(443 |
/ |
2924) |
= |
0.75752394 |
4 |
24260 |
2481 |
- |
2485 |
= |
-4 |
* |
(495 |
/ |
2924) |
= |
-0.67715458 |
5 |
24261 |
2503 |
- |
2528 |
= |
-25 |
* |
(534 |
/ |
2924) |
= |
-4.56566345 |
6 |
24264 |
2527 |
- |
2552 |
= |
-25 |
* |
(432 |
/ |
2924) |
= |
-3.69357045 |
7 |
24266 |
2517 |
- |
2567 |
= |
-50 |
* |
(516 |
/ |
2924) |
= |
-8.8235294 |
8 |
24268 |
2531 |
- |
2586 |
= |
-55 |
* |
(504 |
/ |
2924) |
= |
-9.48016416 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Little Lake City Elementary
|
-26 |
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 |
24277 |
2444 |
- |
2436 |
= |
8 |
* |
(405 |
/ |
2847) |
= |
1.13804004 |
4 |
24279 |
2480 |
- |
2485 |
= |
-5 |
* |
(450 |
/ |
2847) |
= |
-0.79030558 |
5 |
24281 |
2504 |
- |
2528 |
= |
-24 |
* |
(507 |
/ |
2847) |
= |
-4.27397258 |
6 |
24283 |
2530 |
- |
2552 |
= |
-22 |
* |
(540 |
/ |
2847) |
= |
-4.17281348 |
7 |
24285 |
2529 |
- |
2567 |
= |
-38 |
* |
(438 |
/ |
2847) |
= |
-5.84615381 |
8 |
24287 |
2542 |
- |
2586 |
= |
-44 |
* |
(507 |
/ |
2847) |
= |
-7.8356164 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Little Lake City Elementary
|
-22 |
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 |
24453 |
2444 |
- |
2436 |
= |
8 |
* |
(466 |
/ |
2796) |
= |
1.33333333 |
4 |
24454 |
2493 |
- |
2485 |
= |
8 |
* |
(401 |
/ |
2796) |
= |
1.14735336 |
5 |
24455 |
2501 |
- |
2528 |
= |
-27 |
* |
(456 |
/ |
2796) |
= |
-4.40343346 |
6 |
24456 |
2521 |
- |
2552 |
= |
-31 |
* |
(512 |
/ |
2796) |
= |
-5.67668097 |
7 |
24457 |
2530 |
- |
2567 |
= |
-37 |
* |
(518 |
/ |
2796) |
= |
-6.85479253 |
8 |
24458 |
2555 |
- |
2586 |
= |
-31 |
* |
(443 |
/ |
2796) |
= |
-4.9116595 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Little Lake City Elementary
|
-19 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-44
|
-32
|
-26
|
-22
|
-19
|
-143.0 |
-28.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -1.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -55.6
For the lines, you have the data necessary to plot the chart.