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 |
397833 |
2374 |
- |
2436 |
= |
-62 |
* |
(105 |
/ |
722) |
= |
-9.01662044 |
4 |
397834 |
2423 |
- |
2485 |
= |
-62 |
* |
(119 |
/ |
722) |
= |
-10.21883653 |
5 |
397837 |
2449 |
- |
2528 |
= |
-79 |
* |
(86 |
/ |
722) |
= |
-9.40997227 |
6 |
397838 |
2483 |
- |
2552 |
= |
-69 |
* |
(101 |
/ |
722) |
= |
-9.65235452 |
7 |
397841 |
2455 |
- |
2567 |
= |
-112 |
* |
(117 |
/ |
722) |
= |
-18.14958443 |
8 |
397842 |
2441 |
- |
2586 |
= |
-145 |
* |
(101 |
/ |
722) |
= |
-20.28393342 |
11 |
397845 |
2497 |
- |
2628 |
= |
-131 |
* |
(93 |
/ |
722) |
= |
-16.87396118 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Willows Unified
|
-94 |
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 |
12203 |
2410 |
- |
2436 |
= |
-26 |
* |
(83 |
/ |
737) |
= |
-2.92808682 |
4 |
12205 |
2417 |
- |
2485 |
= |
-68 |
* |
(102 |
/ |
737) |
= |
-9.41112615 |
5 |
12208 |
2459 |
- |
2528 |
= |
-69 |
* |
(119 |
/ |
737) |
= |
-11.1411126 |
6 |
12210 |
2477 |
- |
2552 |
= |
-75 |
* |
(96 |
/ |
737) |
= |
-9.76933508 |
7 |
12211 |
2509 |
- |
2567 |
= |
-58 |
* |
(102 |
/ |
737) |
= |
-8.02713701 |
8 |
12213 |
2484 |
- |
2586 |
= |
-102 |
* |
(119 |
/ |
737) |
= |
-16.4694708 |
11 |
12215 |
2495 |
- |
2628 |
= |
-133 |
* |
(116 |
/ |
737) |
= |
-20.93351412 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Willows Unified
|
-79 |
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 |
12541 |
2388 |
- |
2436 |
= |
-48 |
* |
(102 |
/ |
725) |
= |
-6.75310344 |
4 |
12542 |
2439 |
- |
2485 |
= |
-46 |
* |
(89 |
/ |
725) |
= |
-5.64689652 |
5 |
12545 |
2428 |
- |
2528 |
= |
-100 |
* |
(102 |
/ |
725) |
= |
-14.0689655 |
6 |
12547 |
2477 |
- |
2552 |
= |
-75 |
* |
(121 |
/ |
725) |
= |
-12.51724133 |
7 |
12548 |
2500 |
- |
2567 |
= |
-67 |
* |
(94 |
/ |
725) |
= |
-8.68689652 |
8 |
12551 |
2504 |
- |
2586 |
= |
-82 |
* |
(108 |
/ |
725) |
= |
-12.21517239 |
11 |
12553 |
2503 |
- |
2628 |
= |
-125 |
* |
(109 |
/ |
725) |
= |
-18.79310338 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Willows Unified
|
-79 |
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 |
12562 |
2379 |
- |
2436 |
= |
-57 |
* |
(90 |
/ |
754) |
= |
-6.80371352 |
4 |
12563 |
2438 |
- |
2485 |
= |
-47 |
* |
(108 |
/ |
754) |
= |
-6.73209548 |
5 |
12566 |
2470 |
- |
2528 |
= |
-58 |
* |
(89 |
/ |
754) |
= |
-6.84615383 |
6 |
12567 |
2458 |
- |
2552 |
= |
-94 |
* |
(119 |
/ |
754) |
= |
-14.8355437 |
7 |
12570 |
2491 |
- |
2567 |
= |
-76 |
* |
(129 |
/ |
754) |
= |
-13.00265251 |
8 |
12571 |
2474 |
- |
2586 |
= |
-112 |
* |
(102 |
/ |
754) |
= |
-15.15119357 |
11 |
12574 |
2472 |
- |
2628 |
= |
-156 |
* |
(117 |
/ |
754) |
= |
-24.20689643 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Willows Unified
|
-88 |
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 |
12663 |
2374 |
- |
2436 |
= |
-62 |
* |
(96 |
/ |
751) |
= |
-7.92543272 |
4 |
12664 |
2425 |
- |
2485 |
= |
-60 |
* |
(86 |
/ |
751) |
= |
-6.87083886 |
5 |
12665 |
2475 |
- |
2528 |
= |
-53 |
* |
(102 |
/ |
751) |
= |
-7.19840212 |
6 |
12666 |
2479 |
- |
2552 |
= |
-73 |
* |
(101 |
/ |
751) |
= |
-9.81757655 |
7 |
12667 |
2473 |
- |
2567 |
= |
-94 |
* |
(113 |
/ |
751) |
= |
-14.14380823 |
8 |
12668 |
2500 |
- |
2586 |
= |
-86 |
* |
(130 |
/ |
751) |
= |
-14.88681749 |
11 |
12669 |
2493 |
- |
2628 |
= |
-135 |
* |
(123 |
/ |
751) |
= |
-22.11051924 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Willows Unified
|
-83 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-94
|
-79
|
-79
|
-88
|
-83
|
-423.0 |
-84.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -66.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -102.6
For the lines, you have the data necessary to plot the chart.