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 |
3181578 |
2396 |
- |
2436 |
= |
-40 |
* |
(97 |
/ |
785) |
= |
-4.94267512 |
4 |
3181581 |
2454 |
- |
2485 |
= |
-31 |
* |
(119 |
/ |
785) |
= |
-4.69936304 |
5 |
3181582 |
2464 |
- |
2528 |
= |
-64 |
* |
(119 |
/ |
785) |
= |
-9.70191078 |
6 |
3181585 |
2477 |
- |
2552 |
= |
-75 |
* |
(119 |
/ |
785) |
= |
-11.3694267 |
7 |
3181586 |
2474 |
- |
2567 |
= |
-93 |
* |
(115 |
/ |
785) |
= |
-13.6242038 |
8 |
3181589 |
2467 |
- |
2586 |
= |
-119 |
* |
(118 |
/ |
785) |
= |
-17.88789805 |
11 |
3181590 |
2543 |
- |
2628 |
= |
-85 |
* |
(98 |
/ |
785) |
= |
-10.61146494 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Winters Joint Unified
|
-73 |
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 |
98049 |
2436 |
- |
2436 |
= |
0 |
* |
(95 |
/ |
775) |
= |
0.0 |
4 |
98051 |
2439 |
- |
2485 |
= |
-46 |
* |
(108 |
/ |
775) |
= |
-6.41032255 |
5 |
98052 |
2471 |
- |
2528 |
= |
-57 |
* |
(122 |
/ |
775) |
= |
-8.97290318 |
6 |
98054 |
2467 |
- |
2552 |
= |
-85 |
* |
(116 |
/ |
775) |
= |
-12.72258062 |
7 |
98056 |
2503 |
- |
2567 |
= |
-64 |
* |
(118 |
/ |
775) |
= |
-9.7445161 |
8 |
98059 |
2477 |
- |
2586 |
= |
-109 |
* |
(113 |
/ |
775) |
= |
-15.89290316 |
11 |
98060 |
2542 |
- |
2628 |
= |
-86 |
* |
(103 |
/ |
775) |
= |
-11.42967735 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Winters Joint Unified
|
-65 |
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 |
100914 |
2433 |
- |
2436 |
= |
-3 |
* |
(104 |
/ |
780) |
= |
-0.4 |
4 |
100916 |
2459 |
- |
2485 |
= |
-26 |
* |
(95 |
/ |
780) |
= |
-3.16666665 |
5 |
100918 |
2458 |
- |
2528 |
= |
-70 |
* |
(110 |
/ |
780) |
= |
-9.87179487 |
6 |
100919 |
2479 |
- |
2552 |
= |
-73 |
* |
(122 |
/ |
780) |
= |
-11.41794869 |
7 |
100922 |
2476 |
- |
2567 |
= |
-91 |
* |
(115 |
/ |
780) |
= |
-13.41666663 |
8 |
100923 |
2511 |
- |
2586 |
= |
-75 |
* |
(123 |
/ |
780) |
= |
-11.82692303 |
11 |
100926 |
2562 |
- |
2628 |
= |
-66 |
* |
(111 |
/ |
780) |
= |
-9.39230767 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Winters Joint Unified
|
-59 |
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 |
101068 |
2413 |
- |
2436 |
= |
-23 |
* |
(95 |
/ |
759) |
= |
-2.87878787 |
4 |
101071 |
2465 |
- |
2485 |
= |
-20 |
* |
(103 |
/ |
759) |
= |
-2.71409748 |
5 |
101072 |
2478 |
- |
2528 |
= |
-50 |
* |
(97 |
/ |
759) |
= |
-6.3899868 |
6 |
101075 |
2451 |
- |
2552 |
= |
-101 |
* |
(107 |
/ |
759) |
= |
-14.23847167 |
7 |
101076 |
2495 |
- |
2567 |
= |
-72 |
* |
(133 |
/ |
759) |
= |
-12.61660075 |
8 |
101079 |
2492 |
- |
2586 |
= |
-94 |
* |
(115 |
/ |
759) |
= |
-14.24242419 |
11 |
101080 |
2539 |
- |
2628 |
= |
-89 |
* |
(109 |
/ |
759) |
= |
-12.78129116 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Winters Joint Unified
|
-66 |
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 |
101717 |
2417 |
- |
2436 |
= |
-19 |
* |
(127 |
/ |
772) |
= |
-3.12564767 |
4 |
101718 |
2453 |
- |
2485 |
= |
-32 |
* |
(97 |
/ |
772) |
= |
-4.02072538 |
5 |
101719 |
2485 |
- |
2528 |
= |
-43 |
* |
(99 |
/ |
772) |
= |
-5.51424866 |
6 |
101720 |
2484 |
- |
2552 |
= |
-68 |
* |
(98 |
/ |
772) |
= |
-8.63212434 |
7 |
101721 |
2476 |
- |
2567 |
= |
-91 |
* |
(108 |
/ |
772) |
= |
-12.73056994 |
8 |
101722 |
2501 |
- |
2586 |
= |
-85 |
* |
(136 |
/ |
772) |
= |
-14.97409326 |
11 |
101723 |
2515 |
- |
2628 |
= |
-113 |
* |
(107 |
/ |
772) |
= |
-15.66191707 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Winters Joint Unified
|
-65 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-73
|
-65
|
-59
|
-66
|
-65
|
-328.0 |
-65.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -53.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -77.6
For the lines, you have the data necessary to plot the chart.