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 |
2063786 |
2405 |
- |
2436 |
= |
-31 |
* |
(22 |
/ |
128) |
= |
-5.328125 |
4 |
2063789 |
2473 |
- |
2485 |
= |
-12 |
* |
(21 |
/ |
128) |
= |
-1.96875 |
5 |
2063790 |
2444 |
- |
2528 |
= |
-84 |
* |
(17 |
/ |
128) |
= |
-11.15625 |
6 |
2063793 |
2484 |
- |
2552 |
= |
-68 |
* |
(14 |
/ |
128) |
= |
-7.4375 |
7 |
2063794 |
2510 |
- |
2567 |
= |
-57 |
* |
(24 |
/ |
128) |
= |
-10.6875 |
8 |
2063797 |
2460 |
- |
2586 |
= |
-126 |
* |
(14 |
/ |
128) |
= |
-13.78125 |
11 |
2063798 |
2525 |
- |
2628 |
= |
-103 |
* |
(16 |
/ |
128) |
= |
-12.875 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Trona Joint Unified
|
-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 |
63412 |
2390 |
- |
2436 |
= |
-46 |
* |
(22 |
/ |
146) |
= |
-6.93150683 |
4 |
63414 |
2471 |
- |
2485 |
= |
-14 |
* |
(24 |
/ |
146) |
= |
-2.30136985 |
5 |
63417 |
2500 |
- |
2528 |
= |
-28 |
* |
(23 |
/ |
146) |
= |
-4.41095889 |
6 |
63418 |
2479 |
- |
2552 |
= |
-73 |
* |
(19 |
/ |
146) |
= |
-9.49999998 |
7 |
63420 |
2473 |
- |
2567 |
= |
-94 |
* |
(18 |
/ |
146) |
= |
-11.58904107 |
8 |
63423 |
2490 |
- |
2586 |
= |
-96 |
* |
(21 |
/ |
146) |
= |
-13.80821914 |
11 |
63424 |
2527 |
- |
2628 |
= |
-101 |
* |
(19 |
/ |
146) |
= |
-13.14383559 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Trona Joint Unified
|
-62 |
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 |
65190 |
2389 |
- |
2436 |
= |
-47 |
* |
(20 |
/ |
142) |
= |
-6.61971829 |
4 |
65193 |
2436 |
- |
2485 |
= |
-49 |
* |
(23 |
/ |
142) |
= |
-7.93661967 |
5 |
65194 |
2487 |
- |
2528 |
= |
-41 |
* |
(21 |
/ |
142) |
= |
-6.06338024 |
6 |
65196 |
2516 |
- |
2552 |
= |
-36 |
* |
(25 |
/ |
142) |
= |
-6.33802817 |
7 |
65199 |
2446 |
- |
2567 |
= |
-121 |
* |
(20 |
/ |
142) |
= |
-17.04225347 |
8 |
65201 |
2486 |
- |
2586 |
= |
-100 |
* |
(17 |
/ |
142) |
= |
-11.9718309 |
11 |
65202 |
2512 |
- |
2628 |
= |
-116 |
* |
(16 |
/ |
142) |
= |
-13.0704225 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Trona Joint Unified
|
-69 |
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 |
65277 |
2421 |
- |
2436 |
= |
-15 |
* |
(15 |
/ |
131) |
= |
-1.71755724 |
4 |
65279 |
2430 |
- |
2485 |
= |
-55 |
* |
(20 |
/ |
131) |
= |
-8.39694653 |
5 |
65281 |
2458 |
- |
2528 |
= |
-70 |
* |
(22 |
/ |
131) |
= |
-11.75572517 |
6 |
65283 |
2525 |
- |
2552 |
= |
-27 |
* |
(21 |
/ |
131) |
= |
-4.32824426 |
7 |
65285 |
2511 |
- |
2567 |
= |
-56 |
* |
(23 |
/ |
131) |
= |
-9.83206106 |
8 |
65287 |
2453 |
- |
2586 |
= |
-133 |
* |
(18 |
/ |
131) |
= |
-18.27480914 |
11 |
65289 |
2487 |
- |
2628 |
= |
-141 |
* |
(12 |
/ |
131) |
= |
-12.91603047 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Trona Joint Unified
|
-67 |
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 |
65649 |
2402 |
- |
2436 |
= |
-34 |
* |
(23 |
/ |
133) |
= |
-5.87969922 |
4 |
65650 |
2465 |
- |
2485 |
= |
-20 |
* |
(15 |
/ |
133) |
= |
-2.25563908 |
5 |
65651 |
2502 |
- |
2528 |
= |
-26 |
* |
(19 |
/ |
133) |
= |
-3.71428569 |
6 |
65652 |
2521 |
- |
2552 |
= |
-31 |
* |
(15 |
/ |
133) |
= |
-3.49624057 |
7 |
65653 |
2519 |
- |
2567 |
= |
-48 |
* |
(25 |
/ |
133) |
= |
-9.02255635 |
8 |
65654 |
2508 |
- |
2586 |
= |
-78 |
* |
(20 |
/ |
133) |
= |
-11.72932324 |
11 |
65655 |
2523 |
- |
2628 |
= |
-105 |
* |
(16 |
/ |
133) |
= |
-12.63157886 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Trona Joint Unified
|
-49 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-63
|
-62
|
-69
|
-67
|
-49
|
-310.0 |
-62.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -41.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -83.0
For the lines, you have the data necessary to plot the chart.