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 |
146919 |
2370 |
- |
2436 |
= |
-66 |
* |
(293 |
/ |
1481) |
= |
-13.0573936 |
4 |
146922 |
2416 |
- |
2485 |
= |
-69 |
* |
(262 |
/ |
1481) |
= |
-12.20661709 |
5 |
146923 |
2442 |
- |
2528 |
= |
-86 |
* |
(241 |
/ |
1481) |
= |
-13.9945982 |
6 |
146926 |
2447 |
- |
2552 |
= |
-105 |
* |
(238 |
/ |
1481) |
= |
-16.87373394 |
7 |
146927 |
2488 |
- |
2567 |
= |
-79 |
* |
(203 |
/ |
1481) |
= |
-10.82849421 |
8 |
146930 |
2482 |
- |
2586 |
= |
-104 |
* |
(244 |
/ |
1481) |
= |
-17.13436858 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Oroville City Elementary
|
-84 |
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 |
4294 |
2384 |
- |
2436 |
= |
-52 |
* |
(284 |
/ |
1528) |
= |
-9.66492145 |
4 |
4295 |
2418 |
- |
2485 |
= |
-67 |
* |
(274 |
/ |
1528) |
= |
-12.01439786 |
5 |
4298 |
2450 |
- |
2528 |
= |
-78 |
* |
(268 |
/ |
1528) |
= |
-13.68062826 |
6 |
4299 |
2461 |
- |
2552 |
= |
-91 |
* |
(254 |
/ |
1528) |
= |
-15.12696331 |
7 |
4302 |
2477 |
- |
2567 |
= |
-90 |
* |
(227 |
/ |
1528) |
= |
-13.37041881 |
8 |
4303 |
2512 |
- |
2586 |
= |
-74 |
* |
(221 |
/ |
1528) |
= |
-10.70287952 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Oroville City Elementary
|
-75 |
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 |
4374 |
2395 |
- |
2436 |
= |
-41 |
* |
(259 |
/ |
1506) |
= |
-7.05112879 |
4 |
4376 |
2423 |
- |
2485 |
= |
-62 |
* |
(271 |
/ |
1506) |
= |
-11.1567065 |
5 |
4377 |
2440 |
- |
2528 |
= |
-88 |
* |
(262 |
/ |
1506) |
= |
-15.3094289 |
6 |
4379 |
2470 |
- |
2552 |
= |
-82 |
* |
(258 |
/ |
1506) |
= |
-14.04780876 |
7 |
4381 |
2484 |
- |
2567 |
= |
-83 |
* |
(216 |
/ |
1506) |
= |
-11.9043824 |
8 |
4384 |
2472 |
- |
2586 |
= |
-114 |
* |
(240 |
/ |
1506) |
= |
-18.16733059 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Oroville City Elementary
|
-78 |
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 |
4377 |
2388 |
- |
2436 |
= |
-48 |
* |
(249 |
/ |
1487) |
= |
-8.03765971 |
4 |
4380 |
2429 |
- |
2485 |
= |
-56 |
* |
(251 |
/ |
1487) |
= |
-9.4525891 |
5 |
4381 |
2451 |
- |
2528 |
= |
-77 |
* |
(256 |
/ |
1487) |
= |
-13.25622052 |
6 |
4384 |
2464 |
- |
2552 |
= |
-88 |
* |
(249 |
/ |
1487) |
= |
-14.73570947 |
7 |
4385 |
2471 |
- |
2567 |
= |
-96 |
* |
(250 |
/ |
1487) |
= |
-16.13987894 |
8 |
4388 |
2473 |
- |
2586 |
= |
-113 |
* |
(232 |
/ |
1487) |
= |
-17.63012768 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Oroville City Elementary
|
-79 |
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 |
4424 |
2388 |
- |
2436 |
= |
-48 |
* |
(244 |
/ |
1463) |
= |
-8.00546818 |
4 |
4425 |
2444 |
- |
2485 |
= |
-41 |
* |
(233 |
/ |
1463) |
= |
-6.52973339 |
5 |
4426 |
2466 |
- |
2528 |
= |
-62 |
* |
(236 |
/ |
1463) |
= |
-10.001367 |
6 |
4427 |
2477 |
- |
2552 |
= |
-75 |
* |
(253 |
/ |
1463) |
= |
-12.96992475 |
7 |
4428 |
2474 |
- |
2567 |
= |
-93 |
* |
(243 |
/ |
1463) |
= |
-15.44702658 |
8 |
4429 |
2487 |
- |
2586 |
= |
-99 |
* |
(254 |
/ |
1463) |
= |
-17.18796984 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Oroville City Elementary
|
-70 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-84
|
-75
|
-78
|
-79
|
-70
|
-386.0 |
-77.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -62.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -92.2
For the lines, you have the data necessary to plot the chart.