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 |
133453 |
2380 |
- |
2436 |
= |
-56 |
* |
(36 |
/ |
303) |
= |
-6.65346534 |
4 |
133456 |
2399 |
- |
2485 |
= |
-86 |
* |
(38 |
/ |
303) |
= |
-10.78547853 |
5 |
133457 |
2437 |
- |
2528 |
= |
-91 |
* |
(52 |
/ |
303) |
= |
-15.61716165 |
6 |
133460 |
2453 |
- |
2552 |
= |
-99 |
* |
(45 |
/ |
303) |
= |
-14.70297025 |
7 |
133461 |
2465 |
- |
2567 |
= |
-102 |
* |
(55 |
/ |
303) |
= |
-18.5148514 |
8 |
133464 |
2479 |
- |
2586 |
= |
-107 |
* |
(51 |
/ |
303) |
= |
-18.00990092 |
11 |
133465 |
2528 |
- |
2628 |
= |
-100 |
* |
(26 |
/ |
303) |
= |
-8.580858 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Biggs Unified
|
-93 |
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 |
3824 |
2363 |
- |
2436 |
= |
-73 |
* |
(32 |
/ |
295) |
= |
-7.91864405 |
4 |
3825 |
2417 |
- |
2485 |
= |
-68 |
* |
(44 |
/ |
295) |
= |
-10.14237286 |
5 |
3828 |
2417 |
- |
2528 |
= |
-111 |
* |
(36 |
/ |
295) |
= |
-13.54576268 |
6 |
3830 |
2459 |
- |
2552 |
= |
-93 |
* |
(47 |
/ |
295) |
= |
-14.81694907 |
7 |
3831 |
2477 |
- |
2567 |
= |
-90 |
* |
(53 |
/ |
295) |
= |
-16.16949144 |
8 |
3833 |
2465 |
- |
2586 |
= |
-121 |
* |
(54 |
/ |
295) |
= |
-22.14915249 |
11 |
3836 |
2535 |
- |
2628 |
= |
-93 |
* |
(29 |
/ |
295) |
= |
-9.14237281 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Biggs Unified
|
-94 |
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 |
3911 |
2375 |
- |
2436 |
= |
-61 |
* |
(34 |
/ |
291) |
= |
-7.12714771 |
4 |
3914 |
2417 |
- |
2485 |
= |
-68 |
* |
(35 |
/ |
291) |
= |
-8.17869415 |
5 |
3916 |
2443 |
- |
2528 |
= |
-85 |
* |
(43 |
/ |
291) |
= |
-12.56013746 |
6 |
3917 |
2451 |
- |
2552 |
= |
-101 |
* |
(33 |
/ |
291) |
= |
-11.45360816 |
7 |
3920 |
2484 |
- |
2567 |
= |
-83 |
* |
(49 |
/ |
291) |
= |
-13.97594496 |
8 |
3922 |
2478 |
- |
2586 |
= |
-108 |
* |
(51 |
/ |
291) |
= |
-18.92783495 |
11 |
3924 |
2508 |
- |
2628 |
= |
-120 |
* |
(46 |
/ |
291) |
= |
-18.96907212 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Biggs Unified
|
-91 |
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 |
3916 |
2399 |
- |
2436 |
= |
-37 |
* |
(45 |
/ |
300) |
= |
-5.55 |
4 |
3917 |
2406 |
- |
2485 |
= |
-79 |
* |
(34 |
/ |
300) |
= |
-8.95333331 |
5 |
3920 |
2432 |
- |
2528 |
= |
-96 |
* |
(42 |
/ |
300) |
= |
-13.44 |
6 |
3921 |
2474 |
- |
2552 |
= |
-78 |
* |
(41 |
/ |
300) |
= |
-10.65999995 |
7 |
3924 |
2428 |
- |
2567 |
= |
-139 |
* |
(36 |
/ |
300) |
= |
-16.68 |
8 |
3925 |
2470 |
- |
2586 |
= |
-116 |
* |
(49 |
/ |
300) |
= |
-18.94666663 |
11 |
3928 |
2514 |
- |
2628 |
= |
-114 |
* |
(53 |
/ |
300) |
= |
-20.13999992 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Biggs Unified
|
-94 |
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 |
3961 |
2397 |
- |
2436 |
= |
-39 |
* |
(43 |
/ |
294) |
= |
-5.70408162 |
4 |
3962 |
2433 |
- |
2485 |
= |
-52 |
* |
(46 |
/ |
294) |
= |
-8.13605442 |
5 |
3963 |
2421 |
- |
2528 |
= |
-107 |
* |
(31 |
/ |
294) |
= |
-11.28231283 |
6 |
3964 |
2424 |
- |
2552 |
= |
-128 |
* |
(33 |
/ |
294) |
= |
-14.36734682 |
7 |
3965 |
2492 |
- |
2567 |
= |
-75 |
* |
(48 |
/ |
294) |
= |
-12.24489795 |
8 |
3966 |
2424 |
- |
2586 |
= |
-162 |
* |
(42 |
/ |
294) |
= |
-23.142857 |
11 |
3967 |
2493 |
- |
2628 |
= |
-135 |
* |
(51 |
/ |
294) |
= |
-23.41836725 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Biggs Unified
|
-98 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-93
|
-94
|
-91
|
-94
|
-98
|
-470.0 |
-94.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -88.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.0
For the lines, you have the data necessary to plot the chart.