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 |
2085739 |
2390 |
- |
2436 |
= |
-46 |
* |
(1595 |
/ |
11021) |
= |
-6.65729061 |
4 |
2085740 |
2429 |
- |
2485 |
= |
-56 |
* |
(1626 |
/ |
11021) |
= |
-8.26204518 |
5 |
2085743 |
2448 |
- |
2528 |
= |
-80 |
* |
(1602 |
/ |
11021) |
= |
-11.6287088 |
6 |
2085745 |
2472 |
- |
2552 |
= |
-80 |
* |
(1584 |
/ |
11021) |
= |
-11.49804912 |
7 |
2085747 |
2487 |
- |
2567 |
= |
-80 |
* |
(1482 |
/ |
11021) |
= |
-10.75764448 |
8 |
2085748 |
2487 |
- |
2586 |
= |
-99 |
* |
(1534 |
/ |
11021) |
= |
-13.77969328 |
11 |
2085751 |
2522 |
- |
2628 |
= |
-106 |
* |
(1598 |
/ |
11021) |
= |
-15.3695671 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Hesperia Unified
|
-78 |
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 |
64104 |
2406 |
- |
2436 |
= |
-30 |
* |
(1535 |
/ |
11199) |
= |
-4.11197427 |
4 |
64106 |
2431 |
- |
2485 |
= |
-54 |
* |
(1682 |
/ |
11199) |
= |
-8.11036697 |
5 |
64109 |
2453 |
- |
2528 |
= |
-75 |
* |
(1650 |
/ |
11199) |
= |
-11.05009373 |
6 |
64111 |
2476 |
- |
2552 |
= |
-76 |
* |
(1638 |
/ |
11199) |
= |
-11.11599248 |
7 |
64112 |
2475 |
- |
2567 |
= |
-92 |
* |
(1505 |
/ |
11199) |
= |
-12.36360382 |
8 |
64114 |
2479 |
- |
2586 |
= |
-107 |
* |
(1535 |
/ |
11199) |
= |
-14.66604156 |
11 |
64117 |
2537 |
- |
2628 |
= |
-91 |
* |
(1654 |
/ |
11199) |
= |
-13.43994998 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Hesperia Unified
|
-75 |
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 |
65902 |
2400 |
- |
2436 |
= |
-36 |
* |
(1593 |
/ |
11281) |
= |
-5.08359186 |
4 |
65904 |
2437 |
- |
2485 |
= |
-48 |
* |
(1581 |
/ |
11281) |
= |
-6.7270632 |
5 |
65906 |
2448 |
- |
2528 |
= |
-80 |
* |
(1732 |
/ |
11281) |
= |
-12.28259904 |
6 |
65908 |
2474 |
- |
2552 |
= |
-78 |
* |
(1727 |
/ |
11281) |
= |
-11.94096267 |
7 |
65910 |
2464 |
- |
2567 |
= |
-103 |
* |
(1576 |
/ |
11281) |
= |
-14.38950438 |
8 |
65913 |
2464 |
- |
2586 |
= |
-122 |
* |
(1514 |
/ |
11281) |
= |
-16.37337112 |
11 |
65914 |
2529 |
- |
2628 |
= |
-99 |
* |
(1558 |
/ |
11281) |
= |
-13.67272398 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Hesperia Unified
|
-80 |
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 |
65981 |
2403 |
- |
2436 |
= |
-33 |
* |
(1493 |
/ |
11421) |
= |
-4.31389543 |
4 |
65983 |
2439 |
- |
2485 |
= |
-46 |
* |
(1613 |
/ |
11421) |
= |
-6.49662899 |
5 |
65985 |
2457 |
- |
2528 |
= |
-71 |
* |
(1646 |
/ |
11421) |
= |
-10.23255401 |
6 |
65987 |
2474 |
- |
2552 |
= |
-78 |
* |
(1790 |
/ |
11421) |
= |
-12.2248489 |
7 |
65989 |
2465 |
- |
2567 |
= |
-102 |
* |
(1657 |
/ |
11421) |
= |
-14.79852893 |
8 |
65991 |
2458 |
- |
2586 |
= |
-128 |
* |
(1601 |
/ |
11421) |
= |
-17.94308723 |
11 |
65993 |
2534 |
- |
2628 |
= |
-94 |
* |
(1621 |
/ |
11421) |
= |
-13.34156373 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Hesperia Unified
|
-79 |
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 |
66369 |
2410 |
- |
2436 |
= |
-26 |
* |
(1598 |
/ |
11304) |
= |
-3.67551309 |
4 |
66370 |
2443 |
- |
2485 |
= |
-42 |
* |
(1515 |
/ |
11304) |
= |
-5.62898087 |
5 |
66371 |
2459 |
- |
2528 |
= |
-69 |
* |
(1663 |
/ |
11304) |
= |
-10.15100849 |
6 |
66372 |
2485 |
- |
2552 |
= |
-67 |
* |
(1659 |
/ |
11304) |
= |
-9.83306794 |
7 |
66373 |
2469 |
- |
2567 |
= |
-98 |
* |
(1671 |
/ |
11304) |
= |
-14.48673034 |
8 |
66374 |
2468 |
- |
2586 |
= |
-118 |
* |
(1631 |
/ |
11304) |
= |
-17.02565454 |
11 |
66375 |
2546 |
- |
2628 |
= |
-82 |
* |
(1567 |
/ |
11304) |
= |
-11.36712667 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Hesperia Unified
|
-72 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-78
|
-75
|
-80
|
-79
|
-72
|
-384.0 |
-76.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -67.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -85.8
For the lines, you have the data necessary to plot the chart.