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 |
1982183 |
2385 |
- |
2436 |
= |
-51 |
* |
(3117 |
/ |
20443) |
= |
-7.77610918 |
4 |
1982186 |
2428 |
- |
2485 |
= |
-57 |
* |
(2996 |
/ |
20443) |
= |
-8.35356842 |
5 |
1982188 |
2453 |
- |
2528 |
= |
-75 |
* |
(2972 |
/ |
20443) |
= |
-10.9034877 |
6 |
1982189 |
2469 |
- |
2552 |
= |
-83 |
* |
(2764 |
/ |
20443) |
= |
-11.22203193 |
7 |
1982192 |
2475 |
- |
2567 |
= |
-92 |
* |
(2760 |
/ |
20443) |
= |
-12.4208775 |
8 |
1982193 |
2491 |
- |
2586 |
= |
-95 |
* |
(2762 |
/ |
20443) |
= |
-12.83520025 |
11 |
1982195 |
2527 |
- |
2628 |
= |
-101 |
* |
(3072 |
/ |
20443) |
= |
-15.17742009 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Fontana Unified
|
-79 |
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 |
60979 |
2389 |
- |
2436 |
= |
-47 |
* |
(2943 |
/ |
20226) |
= |
-6.83877185 |
4 |
60980 |
2434 |
- |
2485 |
= |
-51 |
* |
(3047 |
/ |
20226) |
= |
-7.68303173 |
5 |
60983 |
2453 |
- |
2528 |
= |
-75 |
* |
(2976 |
/ |
20226) |
= |
-11.03530103 |
6 |
60984 |
2463 |
- |
2552 |
= |
-89 |
* |
(2853 |
/ |
20226) |
= |
-12.55398987 |
7 |
60987 |
2483 |
- |
2567 |
= |
-84 |
* |
(2706 |
/ |
20226) |
= |
-11.23820821 |
8 |
60989 |
2494 |
- |
2586 |
= |
-92 |
* |
(2744 |
/ |
20226) |
= |
-12.4813606 |
11 |
60990 |
2526 |
- |
2628 |
= |
-102 |
* |
(2957 |
/ |
20226) |
= |
-14.91219223 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Fontana Unified
|
-77 |
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 |
62741 |
2394 |
- |
2436 |
= |
-42 |
* |
(2786 |
/ |
20045) |
= |
-5.83746568 |
4 |
62742 |
2430 |
- |
2485 |
= |
-55 |
* |
(2963 |
/ |
20045) |
= |
-8.12995755 |
5 |
62745 |
2451 |
- |
2528 |
= |
-77 |
* |
(3039 |
/ |
20045) |
= |
-11.67388376 |
6 |
62746 |
2463 |
- |
2552 |
= |
-89 |
* |
(2823 |
/ |
20045) |
= |
-12.53414813 |
7 |
62749 |
2475 |
- |
2567 |
= |
-92 |
* |
(2816 |
/ |
20045) |
= |
-12.92451981 |
8 |
62750 |
2499 |
- |
2586 |
= |
-87 |
* |
(2703 |
/ |
20045) |
= |
-11.73165377 |
11 |
62753 |
2529 |
- |
2628 |
= |
-99 |
* |
(2915 |
/ |
20045) |
= |
-14.396857 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Fontana Unified
|
-77 |
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 |
62821 |
2401 |
- |
2436 |
= |
-35 |
* |
(2578 |
/ |
19466) |
= |
-4.63526147 |
4 |
62823 |
2438 |
- |
2485 |
= |
-47 |
* |
(2760 |
/ |
19466) |
= |
-6.66392682 |
5 |
62825 |
2456 |
- |
2528 |
= |
-72 |
* |
(2906 |
/ |
19466) |
= |
-10.74858725 |
6 |
62827 |
2476 |
- |
2552 |
= |
-76 |
* |
(2921 |
/ |
19466) |
= |
-11.40429461 |
7 |
62829 |
2480 |
- |
2567 |
= |
-87 |
* |
(2777 |
/ |
19466) |
= |
-12.41133257 |
8 |
62831 |
2498 |
- |
2586 |
= |
-88 |
* |
(2785 |
/ |
19466) |
= |
-12.59015718 |
11 |
62833 |
2547 |
- |
2628 |
= |
-81 |
* |
(2739 |
/ |
19466) |
= |
-11.39725671 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Fontana Unified
|
-70 |
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 |
63093 |
2409 |
- |
2436 |
= |
-27 |
* |
(2710 |
/ |
19270) |
= |
-3.79709392 |
4 |
63094 |
2445 |
- |
2485 |
= |
-40 |
* |
(2618 |
/ |
19270) |
= |
-5.43435388 |
5 |
63095 |
2463 |
- |
2528 |
= |
-65 |
* |
(2730 |
/ |
19270) |
= |
-9.20861442 |
6 |
63096 |
2478 |
- |
2552 |
= |
-74 |
* |
(2778 |
/ |
19270) |
= |
-10.66798127 |
7 |
63097 |
2479 |
- |
2567 |
= |
-88 |
* |
(2897 |
/ |
19270) |
= |
-13.22968337 |
8 |
63098 |
2495 |
- |
2586 |
= |
-91 |
* |
(2779 |
/ |
19270) |
= |
-13.12345607 |
11 |
63099 |
2552 |
- |
2628 |
= |
-76 |
* |
(2758 |
/ |
19270) |
= |
-10.87742598 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Fontana Unified
|
-66 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-79
|
-77
|
-77
|
-70
|
-66
|
-369.0 |
-73.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -58.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -88.8
For the lines, you have the data necessary to plot the chart.