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 |
1927592 |
2424 |
- |
2436 |
= |
-12 |
* |
(76 |
/ |
622) |
= |
-1.46623794 |
4 |
1927594 |
2449 |
- |
2485 |
= |
-36 |
* |
(88 |
/ |
622) |
= |
-5.09324756 |
5 |
1927595 |
2458 |
- |
2528 |
= |
-70 |
* |
(85 |
/ |
622) |
= |
-9.56591636 |
6 |
1927597 |
2491 |
- |
2552 |
= |
-61 |
* |
(94 |
/ |
622) |
= |
-9.21864946 |
7 |
1927599 |
2522 |
- |
2567 |
= |
-45 |
* |
(85 |
/ |
622) |
= |
-6.14951766 |
8 |
1927601 |
2549 |
- |
2586 |
= |
-37 |
* |
(96 |
/ |
622) |
= |
-5.71061093 |
11 |
1927604 |
2537 |
- |
2628 |
= |
-91 |
* |
(98 |
/ |
622) |
= |
-14.33762057 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Aromas - San Juan Unified
|
-52 |
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 |
59398 |
2404 |
- |
2436 |
= |
-32 |
* |
(91 |
/ |
595) |
= |
-4.89411763 |
4 |
59400 |
2450 |
- |
2485 |
= |
-35 |
* |
(83 |
/ |
595) |
= |
-4.88235293 |
5 |
59403 |
2477 |
- |
2528 |
= |
-51 |
* |
(84 |
/ |
595) |
= |
-7.19999997 |
6 |
59404 |
2491 |
- |
2552 |
= |
-61 |
* |
(88 |
/ |
595) |
= |
-9.0218487 |
7 |
59406 |
2519 |
- |
2567 |
= |
-48 |
* |
(97 |
/ |
595) |
= |
-7.82521008 |
8 |
59408 |
2537 |
- |
2586 |
= |
-49 |
* |
(90 |
/ |
595) |
= |
-7.4117647 |
11 |
59410 |
2562 |
- |
2628 |
= |
-66 |
* |
(62 |
/ |
595) |
= |
-6.87731088 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Aromas - San Juan Unified
|
-48 |
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 |
61139 |
2404 |
- |
2436 |
= |
-32 |
* |
(84 |
/ |
605) |
= |
-4.4429752 |
4 |
61141 |
2438 |
- |
2485 |
= |
-47 |
* |
(80 |
/ |
605) |
= |
-6.21487599 |
5 |
61144 |
2473 |
- |
2528 |
= |
-55 |
* |
(82 |
/ |
605) |
= |
-7.45454545 |
6 |
61145 |
2497 |
- |
2552 |
= |
-55 |
* |
(84 |
/ |
605) |
= |
-7.63636363 |
7 |
61147 |
2510 |
- |
2567 |
= |
-57 |
* |
(83 |
/ |
605) |
= |
-7.81983467 |
8 |
61149 |
2528 |
- |
2586 |
= |
-58 |
* |
(101 |
/ |
605) |
= |
-9.68264458 |
11 |
61151 |
2558 |
- |
2628 |
= |
-70 |
* |
(91 |
/ |
605) |
= |
-10.52892561 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Aromas - San Juan Unified
|
-54 |
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 |
61254 |
2406 |
- |
2436 |
= |
-30 |
* |
(75 |
/ |
563) |
= |
-3.9964476 |
4 |
61257 |
2446 |
- |
2485 |
= |
-39 |
* |
(83 |
/ |
563) |
= |
-5.74955593 |
5 |
61258 |
2458 |
- |
2528 |
= |
-70 |
* |
(78 |
/ |
563) |
= |
-9.69804612 |
6 |
61261 |
2511 |
- |
2552 |
= |
-41 |
* |
(84 |
/ |
563) |
= |
-6.11722911 |
7 |
61262 |
2509 |
- |
2567 |
= |
-58 |
* |
(84 |
/ |
563) |
= |
-8.65364118 |
8 |
61265 |
2538 |
- |
2586 |
= |
-48 |
* |
(85 |
/ |
563) |
= |
-7.24689163 |
11 |
61266 |
2542 |
- |
2628 |
= |
-86 |
* |
(74 |
/ |
563) |
= |
-11.30373001 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Aromas - San Juan Unified
|
-53 |
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 |
61507 |
2412 |
- |
2436 |
= |
-24 |
* |
(81 |
/ |
563) |
= |
-3.45293071 |
4 |
61508 |
2438 |
- |
2485 |
= |
-47 |
* |
(75 |
/ |
563) |
= |
-6.26110124 |
5 |
61509 |
2443 |
- |
2528 |
= |
-85 |
* |
(86 |
/ |
563) |
= |
-12.98401418 |
6 |
61510 |
2483 |
- |
2552 |
= |
-69 |
* |
(79 |
/ |
563) |
= |
-9.68206034 |
7 |
61511 |
2526 |
- |
2567 |
= |
-41 |
* |
(85 |
/ |
563) |
= |
-6.19005327 |
8 |
61512 |
2543 |
- |
2586 |
= |
-43 |
* |
(79 |
/ |
563) |
= |
-6.03374775 |
11 |
61513 |
2521 |
- |
2628 |
= |
-107 |
* |
(78 |
/ |
563) |
= |
-14.82415621 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Aromas - San Juan Unified
|
-59 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-52
|
-48
|
-54
|
-53
|
-59
|
-266.0 |
-53.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -44.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -62.2
For the lines, you have the data necessary to plot the chart.