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 |
2401094 |
2403 |
- |
2436 |
= |
-33 |
* |
(2332 |
/ |
15139) |
= |
-5.08329479 |
4 |
2401097 |
2448 |
- |
2485 |
= |
-37 |
* |
(2220 |
/ |
15139) |
= |
-5.42572163 |
5 |
2401098 |
2475 |
- |
2528 |
= |
-53 |
* |
(2199 |
/ |
15139) |
= |
-7.69846089 |
6 |
2401101 |
2493 |
- |
2552 |
= |
-59 |
* |
(2144 |
/ |
15139) |
= |
-8.3556377 |
7 |
2401102 |
2498 |
- |
2567 |
= |
-69 |
* |
(2179 |
/ |
15139) |
= |
-9.93136927 |
8 |
2401105 |
2510 |
- |
2586 |
= |
-76 |
* |
(2140 |
/ |
15139) |
= |
-10.74311376 |
11 |
2401106 |
2544 |
- |
2628 |
= |
-84 |
* |
(1925 |
/ |
15139) |
= |
-10.68102252 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lodi Unified
|
-58 |
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 |
73334 |
2411 |
- |
2436 |
= |
-25 |
* |
(2127 |
/ |
15109) |
= |
-3.5194255 |
4 |
73336 |
2453 |
- |
2485 |
= |
-32 |
* |
(2371 |
/ |
15109) |
= |
-5.02164272 |
5 |
73337 |
2475 |
- |
2528 |
= |
-53 |
* |
(2244 |
/ |
15109) |
= |
-7.8715997 |
6 |
73340 |
2496 |
- |
2552 |
= |
-56 |
* |
(2201 |
/ |
15109) |
= |
-8.15778673 |
7 |
73342 |
2507 |
- |
2567 |
= |
-60 |
* |
(2081 |
/ |
15109) |
= |
-8.26394862 |
8 |
73343 |
2511 |
- |
2586 |
= |
-75 |
* |
(2173 |
/ |
15109) |
= |
-10.78661723 |
11 |
73346 |
2542 |
- |
2628 |
= |
-86 |
* |
(1912 |
/ |
15109) |
= |
-10.88304983 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lodi Unified
|
-55 |
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 |
75296 |
2413 |
- |
2436 |
= |
-23 |
* |
(2170 |
/ |
15234) |
= |
-3.27622421 |
4 |
75299 |
2449 |
- |
2485 |
= |
-36 |
* |
(2167 |
/ |
15234) |
= |
-5.12091374 |
5 |
75301 |
2476 |
- |
2528 |
= |
-52 |
* |
(2374 |
/ |
15234) |
= |
-8.10345276 |
6 |
75303 |
2491 |
- |
2552 |
= |
-61 |
* |
(2227 |
/ |
15234) |
= |
-8.91735588 |
7 |
75305 |
2510 |
- |
2567 |
= |
-57 |
* |
(2196 |
/ |
15234) |
= |
-8.21662068 |
8 |
75306 |
2520 |
- |
2586 |
= |
-66 |
* |
(2109 |
/ |
15234) |
= |
-9.13706178 |
11 |
75309 |
2567 |
- |
2628 |
= |
-61 |
* |
(1991 |
/ |
15234) |
= |
-7.97236444 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lodi Unified
|
-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 |
75491 |
2416 |
- |
2436 |
= |
-20 |
* |
(2049 |
/ |
15214) |
= |
-2.6935717 |
4 |
75493 |
2453 |
- |
2485 |
= |
-32 |
* |
(2183 |
/ |
15214) |
= |
-4.59156038 |
5 |
75495 |
2469 |
- |
2528 |
= |
-59 |
* |
(2197 |
/ |
15214) |
= |
-8.51998155 |
6 |
75497 |
2498 |
- |
2552 |
= |
-54 |
* |
(2376 |
/ |
15214) |
= |
-8.43328508 |
7 |
75499 |
2501 |
- |
2567 |
= |
-66 |
* |
(2169 |
/ |
15214) |
= |
-9.40935976 |
8 |
75501 |
2518 |
- |
2586 |
= |
-68 |
* |
(2201 |
/ |
15214) |
= |
-9.83751804 |
11 |
75503 |
2556 |
- |
2628 |
= |
-72 |
* |
(2039 |
/ |
15214) |
= |
-9.64953331 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lodi 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 |
76021 |
2423 |
- |
2436 |
= |
-13 |
* |
(2222 |
/ |
15120) |
= |
-1.91044972 |
4 |
76022 |
2455 |
- |
2485 |
= |
-30 |
* |
(2056 |
/ |
15120) |
= |
-4.07936505 |
5 |
76023 |
2478 |
- |
2528 |
= |
-50 |
* |
(2157 |
/ |
15120) |
= |
-7.1329365 |
6 |
76024 |
2491 |
- |
2552 |
= |
-61 |
* |
(2159 |
/ |
15120) |
= |
-8.71025131 |
7 |
76025 |
2506 |
- |
2567 |
= |
-61 |
* |
(2304 |
/ |
15120) |
= |
-9.29523807 |
8 |
76026 |
2511 |
- |
2586 |
= |
-75 |
* |
(2148 |
/ |
15120) |
= |
-10.6547619 |
11 |
76027 |
2558 |
- |
2628 |
= |
-70 |
* |
(2074 |
/ |
15120) |
= |
-9.60185184 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lodi Unified
|
-51 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-58
|
-55
|
-51
|
-53
|
-51
|
-268.0 |
-53.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -59.6
For the lines, you have the data necessary to plot the chart.