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 |
2388877 |
2405 |
- |
2436 |
= |
-31 |
* |
(193 |
/ |
1389) |
= |
-4.3074154 |
4 |
2388880 |
2437 |
- |
2485 |
= |
-48 |
* |
(193 |
/ |
1389) |
= |
-6.66954643 |
5 |
2388881 |
2477 |
- |
2528 |
= |
-51 |
* |
(185 |
/ |
1389) |
= |
-6.79265654 |
6 |
2388884 |
2479 |
- |
2552 |
= |
-73 |
* |
(195 |
/ |
1389) |
= |
-10.24838006 |
7 |
2388885 |
2499 |
- |
2567 |
= |
-68 |
* |
(204 |
/ |
1389) |
= |
-9.987041 |
8 |
2388888 |
2524 |
- |
2586 |
= |
-62 |
* |
(194 |
/ |
1389) |
= |
-8.65946721 |
11 |
2388889 |
2562 |
- |
2628 |
= |
-66 |
* |
(225 |
/ |
1389) |
= |
-10.69114471 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Escalon Unified
|
-57 |
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 |
72973 |
2416 |
- |
2436 |
= |
-20 |
* |
(195 |
/ |
1391) |
= |
-2.8037383 |
4 |
72976 |
2443 |
- |
2485 |
= |
-42 |
* |
(191 |
/ |
1391) |
= |
-5.76707401 |
5 |
72977 |
2481 |
- |
2528 |
= |
-47 |
* |
(193 |
/ |
1391) |
= |
-6.52120775 |
6 |
72980 |
2482 |
- |
2552 |
= |
-70 |
* |
(176 |
/ |
1391) |
= |
-8.85693739 |
7 |
72982 |
2508 |
- |
2567 |
= |
-59 |
* |
(206 |
/ |
1391) |
= |
-8.73759881 |
8 |
72983 |
2533 |
- |
2586 |
= |
-53 |
* |
(203 |
/ |
1391) |
= |
-7.73472317 |
11 |
72985 |
2547 |
- |
2628 |
= |
-81 |
* |
(227 |
/ |
1391) |
= |
-13.21854779 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Escalon Unified
|
-54 |
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 |
74941 |
2426 |
- |
2436 |
= |
-10 |
* |
(189 |
/ |
1331) |
= |
-1.41998497 |
4 |
74943 |
2450 |
- |
2485 |
= |
-35 |
* |
(197 |
/ |
1331) |
= |
-5.18031553 |
5 |
74945 |
2478 |
- |
2528 |
= |
-50 |
* |
(180 |
/ |
1331) |
= |
-6.7618332 |
6 |
74947 |
2473 |
- |
2552 |
= |
-79 |
* |
(189 |
/ |
1331) |
= |
-11.21788126 |
7 |
74949 |
2503 |
- |
2567 |
= |
-64 |
* |
(182 |
/ |
1331) |
= |
-8.75131475 |
8 |
74951 |
2522 |
- |
2586 |
= |
-64 |
* |
(207 |
/ |
1331) |
= |
-9.95341843 |
11 |
74953 |
2580 |
- |
2628 |
= |
-48 |
* |
(187 |
/ |
1331) |
= |
-6.74380162 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Escalon Unified
|
-50 |
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 |
75123 |
2430 |
- |
2436 |
= |
-6 |
* |
(178 |
/ |
1329) |
= |
-0.80361173 |
4 |
75126 |
2454 |
- |
2485 |
= |
-31 |
* |
(184 |
/ |
1329) |
= |
-4.29194882 |
5 |
75128 |
2482 |
- |
2528 |
= |
-46 |
* |
(210 |
/ |
1329) |
= |
-7.26862302 |
6 |
75130 |
2472 |
- |
2552 |
= |
-80 |
* |
(188 |
/ |
1329) |
= |
-11.31677952 |
7 |
75132 |
2510 |
- |
2567 |
= |
-57 |
* |
(192 |
/ |
1329) |
= |
-8.23476293 |
8 |
75133 |
2514 |
- |
2586 |
= |
-72 |
* |
(187 |
/ |
1329) |
= |
-10.13092546 |
11 |
75136 |
2560 |
- |
2628 |
= |
-68 |
* |
(190 |
/ |
1329) |
= |
-9.72159518 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Escalon Unified
|
-52 |
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 |
75659 |
2448 |
- |
2436 |
= |
12 |
* |
(180 |
/ |
1354) |
= |
1.59527326 |
4 |
75660 |
2459 |
- |
2485 |
= |
-26 |
* |
(188 |
/ |
1354) |
= |
-3.61004431 |
5 |
75661 |
2499 |
- |
2528 |
= |
-29 |
* |
(200 |
/ |
1354) |
= |
-4.28360412 |
6 |
75662 |
2476 |
- |
2552 |
= |
-76 |
* |
(227 |
/ |
1354) |
= |
-12.74150663 |
7 |
75663 |
2506 |
- |
2567 |
= |
-61 |
* |
(177 |
/ |
1354) |
= |
-7.97415064 |
8 |
75664 |
2544 |
- |
2586 |
= |
-42 |
* |
(192 |
/ |
1354) |
= |
-5.95568681 |
11 |
75665 |
2569 |
- |
2628 |
= |
-59 |
* |
(190 |
/ |
1354) |
= |
-8.27917282 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Escalon Unified
|
-41 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-57
|
-54
|
-50
|
-52
|
-41
|
-254.0 |
-50.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -32.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -68.8
For the lines, you have the data necessary to plot the chart.