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 |
164924 |
2419 |
- |
2436 |
= |
-17 |
* |
(91 |
/ |
520) |
= |
-2.975 |
4 |
164927 |
2461 |
- |
2485 |
= |
-24 |
* |
(95 |
/ |
520) |
= |
-4.38461537 |
5 |
164928 |
2496 |
- |
2528 |
= |
-32 |
* |
(77 |
/ |
520) |
= |
-4.73846154 |
6 |
164931 |
2503 |
- |
2552 |
= |
-49 |
* |
(83 |
/ |
520) |
= |
-7.82115382 |
7 |
164932 |
2547 |
- |
2567 |
= |
-20 |
* |
(80 |
/ |
520) |
= |
-3.07692306 |
8 |
164935 |
2553 |
- |
2586 |
= |
-33 |
* |
(94 |
/ |
520) |
= |
-5.96538459 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Mark Twain Union Elementary
|
-29 |
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 |
4924 |
2427 |
- |
2436 |
= |
-9 |
* |
(97 |
/ |
540) |
= |
-1.61666666 |
4 |
4926 |
2450 |
- |
2485 |
= |
-35 |
* |
(97 |
/ |
540) |
= |
-6.28703702 |
5 |
4927 |
2481 |
- |
2528 |
= |
-47 |
* |
(95 |
/ |
540) |
= |
-8.26851848 |
6 |
4930 |
2515 |
- |
2552 |
= |
-37 |
* |
(78 |
/ |
540) |
= |
-5.34444443 |
7 |
4931 |
2522 |
- |
2567 |
= |
-45 |
* |
(85 |
/ |
540) |
= |
-7.08333332 |
8 |
4934 |
2549 |
- |
2586 |
= |
-37 |
* |
(88 |
/ |
540) |
= |
-6.02962959 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Mark Twain Union Elementary
|
-35 |
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 |
5017 |
2423 |
- |
2436 |
= |
-13 |
* |
(86 |
/ |
527) |
= |
-2.12144212 |
4 |
5019 |
2446 |
- |
2485 |
= |
-39 |
* |
(94 |
/ |
527) |
= |
-6.95635672 |
5 |
5021 |
2449 |
- |
2528 |
= |
-79 |
* |
(90 |
/ |
527) |
= |
-13.49146105 |
6 |
5023 |
2519 |
- |
2552 |
= |
-33 |
* |
(98 |
/ |
527) |
= |
-6.13662238 |
7 |
5025 |
2534 |
- |
2567 |
= |
-33 |
* |
(79 |
/ |
527) |
= |
-4.94686906 |
8 |
5028 |
2514 |
- |
2586 |
= |
-72 |
* |
(80 |
/ |
527) |
= |
-10.92979123 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Mark Twain Union Elementary
|
-45 |
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 |
5005 |
2400 |
- |
2436 |
= |
-36 |
* |
(73 |
/ |
501) |
= |
-5.24550895 |
4 |
5008 |
2472 |
- |
2485 |
= |
-13 |
* |
(85 |
/ |
501) |
= |
-2.20558881 |
5 |
5009 |
2467 |
- |
2528 |
= |
-61 |
* |
(84 |
/ |
501) |
= |
-10.22754487 |
6 |
5012 |
2481 |
- |
2552 |
= |
-71 |
* |
(87 |
/ |
501) |
= |
-12.32934127 |
7 |
5013 |
2530 |
- |
2567 |
= |
-37 |
* |
(95 |
/ |
501) |
= |
-7.01596805 |
8 |
5016 |
2530 |
- |
2586 |
= |
-56 |
* |
(77 |
/ |
501) |
= |
-8.60678638 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Mark Twain Union Elementary
|
-46 |
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 |
5038 |
2414 |
- |
2436 |
= |
-22 |
* |
(76 |
/ |
476) |
= |
-3.51260503 |
4 |
5039 |
2450 |
- |
2485 |
= |
-35 |
* |
(70 |
/ |
476) |
= |
-5.14705881 |
5 |
5040 |
2483 |
- |
2528 |
= |
-45 |
* |
(86 |
/ |
476) |
= |
-8.13025206 |
6 |
5041 |
2475 |
- |
2552 |
= |
-77 |
* |
(87 |
/ |
476) |
= |
-14.07352939 |
7 |
5042 |
2505 |
- |
2567 |
= |
-62 |
* |
(78 |
/ |
476) |
= |
-10.15966385 |
8 |
5043 |
2550 |
- |
2586 |
= |
-36 |
* |
(79 |
/ |
476) |
= |
-5.9747899 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Mark Twain Union Elementary
|
-47 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-29
|
-35
|
-45
|
-46
|
-47
|
-202.0 |
-40.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -19.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -61.4
For the lines, you have the data necessary to plot the chart.