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 |
2672967 |
2414 |
- |
2436 |
= |
-22 |
* |
(58 |
/ |
335) |
= |
-3.80895522 |
4 |
2672970 |
2438 |
- |
2485 |
= |
-47 |
* |
(63 |
/ |
335) |
= |
-8.83880595 |
5 |
2672971 |
2446 |
- |
2528 |
= |
-82 |
* |
(47 |
/ |
335) |
= |
-11.50447757 |
6 |
2672974 |
2518 |
- |
2552 |
= |
-34 |
* |
(62 |
/ |
335) |
= |
-6.29253728 |
7 |
2672975 |
2501 |
- |
2567 |
= |
-66 |
* |
(56 |
/ |
335) |
= |
-11.03283581 |
8 |
2672978 |
2522 |
- |
2586 |
= |
-64 |
* |
(49 |
/ |
335) |
= |
-9.36119398 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Luther Burbank
|
-51 |
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 |
81454 |
2439 |
- |
2436 |
= |
3 |
* |
(49 |
/ |
329) |
= |
0.44680851 |
4 |
81457 |
2434 |
- |
2485 |
= |
-51 |
* |
(63 |
/ |
329) |
= |
-9.76595741 |
5 |
81459 |
2450 |
- |
2528 |
= |
-78 |
* |
(60 |
/ |
329) |
= |
-14.22492396 |
6 |
81461 |
2501 |
- |
2552 |
= |
-51 |
* |
(47 |
/ |
329) |
= |
-7.28571424 |
7 |
81463 |
2505 |
- |
2567 |
= |
-62 |
* |
(57 |
/ |
329) |
= |
-10.7416413 |
8 |
81465 |
2573 |
- |
2586 |
= |
-13 |
* |
(53 |
/ |
329) |
= |
-2.09422491 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Luther Burbank
|
-44 |
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 |
83727 |
2404 |
- |
2436 |
= |
-32 |
* |
(64 |
/ |
333) |
= |
-6.15015014 |
4 |
83728 |
2486 |
- |
2485 |
= |
1 |
* |
(51 |
/ |
333) |
= |
0.15315315 |
5 |
83730 |
2445 |
- |
2528 |
= |
-83 |
* |
(57 |
/ |
333) |
= |
-14.20720719 |
6 |
83732 |
2477 |
- |
2552 |
= |
-75 |
* |
(62 |
/ |
333) |
= |
-13.96396395 |
7 |
83735 |
2484 |
- |
2567 |
= |
-83 |
* |
(44 |
/ |
333) |
= |
-10.96696696 |
8 |
83736 |
2569 |
- |
2586 |
= |
-17 |
* |
(55 |
/ |
333) |
= |
-2.80780781 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Luther Burbank
|
-48 |
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 |
83947 |
2413 |
- |
2436 |
= |
-23 |
* |
(56 |
/ |
346) |
= |
-3.72254333 |
4 |
83949 |
2465 |
- |
2485 |
= |
-20 |
* |
(69 |
/ |
346) |
= |
-3.9884393 |
5 |
83951 |
2462 |
- |
2528 |
= |
-66 |
* |
(53 |
/ |
346) |
= |
-10.10982654 |
6 |
83953 |
2503 |
- |
2552 |
= |
-49 |
* |
(60 |
/ |
346) |
= |
-8.4971098 |
7 |
83955 |
2487 |
- |
2567 |
= |
-80 |
* |
(63 |
/ |
346) |
= |
-14.56647392 |
8 |
83957 |
2557 |
- |
2586 |
= |
-29 |
* |
(45 |
/ |
346) |
= |
-3.77167629 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Luther Burbank
|
-45 |
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 |
84563 |
2427 |
- |
2436 |
= |
-9 |
* |
(52 |
/ |
349) |
= |
-1.34097421 |
4 |
84564 |
2466 |
- |
2485 |
= |
-19 |
* |
(60 |
/ |
349) |
= |
-3.26647563 |
5 |
84565 |
2452 |
- |
2528 |
= |
-76 |
* |
(63 |
/ |
349) |
= |
-13.71919768 |
6 |
84566 |
2487 |
- |
2552 |
= |
-65 |
* |
(58 |
/ |
349) |
= |
-10.80229222 |
7 |
84567 |
2494 |
- |
2567 |
= |
-73 |
* |
(54 |
/ |
349) |
= |
-11.29512889 |
8 |
84568 |
2543 |
- |
2586 |
= |
-43 |
* |
(62 |
/ |
349) |
= |
-7.63896845 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Luther Burbank
|
-48 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-51
|
-44
|
-48
|
-45
|
-48
|
-236.0 |
-47.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -41.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -53.2
For the lines, you have the data necessary to plot the chart.