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 |
1317685 |
2403 |
- |
2436 |
= |
-33 |
* |
(312 |
/ |
1740) |
= |
-5.91724135 |
4 |
1317688 |
2434 |
- |
2485 |
= |
-51 |
* |
(312 |
/ |
1740) |
= |
-9.14482754 |
5 |
1317689 |
2445 |
- |
2528 |
= |
-83 |
* |
(278 |
/ |
1740) |
= |
-13.26091946 |
6 |
1317692 |
2474 |
- |
2552 |
= |
-78 |
* |
(323 |
/ |
1740) |
= |
-14.47931027 |
7 |
1317693 |
2497 |
- |
2567 |
= |
-70 |
* |
(247 |
/ |
1740) |
= |
-9.93678154 |
8 |
1317696 |
2517 |
- |
2586 |
= |
-69 |
* |
(268 |
/ |
1740) |
= |
-10.62758617 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Weaver Union
|
-63 |
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 |
41358 |
2409 |
- |
2436 |
= |
-27 |
* |
(301 |
/ |
1776) |
= |
-4.57601349 |
4 |
41360 |
2450 |
- |
2485 |
= |
-35 |
* |
(317 |
/ |
1776) |
= |
-6.24718465 |
5 |
41362 |
2456 |
- |
2528 |
= |
-72 |
* |
(309 |
/ |
1776) |
= |
-12.52702699 |
6 |
41365 |
2489 |
- |
2552 |
= |
-63 |
* |
(282 |
/ |
1776) |
= |
-10.00337833 |
7 |
41366 |
2506 |
- |
2567 |
= |
-61 |
* |
(305 |
/ |
1776) |
= |
-10.47578827 |
8 |
41369 |
2520 |
- |
2586 |
= |
-66 |
* |
(262 |
/ |
1776) |
= |
-9.73648645 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Weaver Union
|
-54 |
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 |
42377 |
2410 |
- |
2436 |
= |
-26 |
* |
(301 |
/ |
1812) |
= |
-4.31898454 |
4 |
42379 |
2456 |
- |
2485 |
= |
-29 |
* |
(305 |
/ |
1812) |
= |
-4.88134656 |
5 |
42382 |
2458 |
- |
2528 |
= |
-70 |
* |
(305 |
/ |
1812) |
= |
-11.78256065 |
6 |
42383 |
2483 |
- |
2552 |
= |
-69 |
* |
(309 |
/ |
1812) |
= |
-11.76655627 |
7 |
42385 |
2512 |
- |
2567 |
= |
-55 |
* |
(286 |
/ |
1812) |
= |
-8.68101542 |
8 |
42388 |
2528 |
- |
2586 |
= |
-58 |
* |
(306 |
/ |
1812) |
= |
-9.79470198 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Weaver Union
|
-51 |
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 |
42390 |
2416 |
- |
2436 |
= |
-20 |
* |
(327 |
/ |
1817) |
= |
-3.59933956 |
4 |
42393 |
2460 |
- |
2485 |
= |
-25 |
* |
(306 |
/ |
1817) |
= |
-4.21023665 |
5 |
42394 |
2476 |
- |
2528 |
= |
-52 |
* |
(291 |
/ |
1817) |
= |
-8.3280132 |
6 |
42397 |
2490 |
- |
2552 |
= |
-62 |
* |
(311 |
/ |
1817) |
= |
-10.61199775 |
7 |
42398 |
2527 |
- |
2567 |
= |
-40 |
* |
(307 |
/ |
1817) |
= |
-6.75839292 |
8 |
42401 |
2538 |
- |
2586 |
= |
-48 |
* |
(275 |
/ |
1817) |
= |
-7.26472205 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Weaver Union
|
-41 |
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 |
42533 |
2425 |
- |
2436 |
= |
-11 |
* |
(293 |
/ |
1873) |
= |
-1.72076882 |
4 |
42534 |
2463 |
- |
2485 |
= |
-22 |
* |
(338 |
/ |
1873) |
= |
-3.97010143 |
5 |
42535 |
2477 |
- |
2528 |
= |
-51 |
* |
(305 |
/ |
1873) |
= |
-8.30485851 |
6 |
42536 |
2509 |
- |
2552 |
= |
-43 |
* |
(307 |
/ |
1873) |
= |
-7.04805122 |
7 |
42537 |
2528 |
- |
2567 |
= |
-39 |
* |
(324 |
/ |
1873) |
= |
-6.74639612 |
8 |
42538 |
2542 |
- |
2586 |
= |
-44 |
* |
(306 |
/ |
1873) |
= |
-7.18846766 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Weaver Union
|
-35 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-63
|
-54
|
-51
|
-41
|
-35
|
-244.0 |
-48.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -81.8
For the lines, you have the data necessary to plot the chart.