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 |
704706 |
2447 |
- |
2436 |
= |
11 |
* |
(1865 |
/ |
13357) |
= |
1.53589877 |
4 |
704707 |
2482 |
- |
2485 |
= |
-3 |
* |
(1970 |
/ |
13357) |
= |
-0.44246462 |
5 |
704710 |
2517 |
- |
2528 |
= |
-11 |
* |
(1934 |
/ |
13357) |
= |
-1.59272291 |
6 |
704711 |
2545 |
- |
2552 |
= |
-7 |
* |
(1831 |
/ |
13357) |
= |
-0.95957176 |
7 |
704714 |
2553 |
- |
2567 |
= |
-14 |
* |
(1875 |
/ |
13357) |
= |
-1.96526165 |
8 |
704715 |
2565 |
- |
2586 |
= |
-21 |
* |
(1852 |
/ |
13357) |
= |
-2.91173167 |
11 |
704718 |
2610 |
- |
2628 |
= |
-18 |
* |
(2030 |
/ |
13357) |
= |
-2.73564423 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Glendale Unified
|
-9 |
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 |
22264 |
2452 |
- |
2436 |
= |
16 |
* |
(1952 |
/ |
13542) |
= |
2.3063063 |
4 |
22266 |
2488 |
- |
2485 |
= |
3 |
* |
(1881 |
/ |
13542) |
= |
0.41670359 |
5 |
22268 |
2513 |
- |
2528 |
= |
-15 |
* |
(1988 |
/ |
13542) |
= |
-2.2020381 |
6 |
22270 |
2551 |
- |
2552 |
= |
-1 |
* |
(1967 |
/ |
13542) |
= |
-0.14525181 |
7 |
22273 |
2565 |
- |
2567 |
= |
-2 |
* |
(1872 |
/ |
13542) |
= |
-0.27647319 |
8 |
22275 |
2584 |
- |
2586 |
= |
-2 |
* |
(1903 |
/ |
13542) |
= |
-0.28105154 |
11 |
22276 |
2615 |
- |
2628 |
= |
-13 |
* |
(1979 |
/ |
13542) |
= |
-1.89979323 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Glendale Unified
|
-2 |
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 |
22681 |
2449 |
- |
2436 |
= |
13 |
* |
(1907 |
/ |
13578) |
= |
1.82582118 |
4 |
22684 |
2487 |
- |
2485 |
= |
2 |
* |
(1987 |
/ |
13578) |
= |
0.29267933 |
5 |
22685 |
2516 |
- |
2528 |
= |
-12 |
* |
(1886 |
/ |
13578) |
= |
-1.66681396 |
6 |
22687 |
2545 |
- |
2552 |
= |
-7 |
* |
(1997 |
/ |
13578) |
= |
-1.02953306 |
7 |
22690 |
2563 |
- |
2567 |
= |
-4 |
* |
(1963 |
/ |
13578) |
= |
-0.5782884 |
8 |
22692 |
2576 |
- |
2586 |
= |
-10 |
* |
(1902 |
/ |
13578) |
= |
-1.4007954 |
11 |
22694 |
2611 |
- |
2628 |
= |
-17 |
* |
(1936 |
/ |
13578) |
= |
-2.42392105 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Glendale Unified
|
-5 |
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 |
22679 |
2454 |
- |
2436 |
= |
18 |
* |
(1932 |
/ |
13464) |
= |
2.5828877 |
4 |
22681 |
2487 |
- |
2485 |
= |
2 |
* |
(1916 |
/ |
13464) |
= |
0.28461081 |
5 |
22683 |
2520 |
- |
2528 |
= |
-8 |
* |
(1997 |
/ |
13464) |
= |
-1.18657159 |
6 |
22685 |
2557 |
- |
2552 |
= |
5 |
* |
(1888 |
/ |
13464) |
= |
0.70112894 |
7 |
22687 |
2566 |
- |
2567 |
= |
-1 |
* |
(1942 |
/ |
13464) |
= |
-0.14423648 |
8 |
22688 |
2586 |
- |
2586 |
= |
0 |
* |
(1960 |
/ |
13464) |
= |
0.0 |
11 |
22691 |
2609 |
- |
2628 |
= |
-19 |
* |
(1829 |
/ |
13464) |
= |
-2.58103089 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Glendale Unified
|
0 |
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 |
22864 |
2466 |
- |
2436 |
= |
30 |
* |
(1966 |
/ |
13405) |
= |
4.39985079 |
4 |
22865 |
2498 |
- |
2485 |
= |
13 |
* |
(1915 |
/ |
13405) |
= |
1.85714285 |
5 |
22866 |
2524 |
- |
2528 |
= |
-4 |
* |
(1900 |
/ |
13405) |
= |
-0.56695263 |
6 |
22867 |
2557 |
- |
2552 |
= |
5 |
* |
(1935 |
/ |
13405) |
= |
0.72174562 |
7 |
22868 |
2568 |
- |
2567 |
= |
1 |
* |
(1840 |
/ |
13405) |
= |
0.13726222 |
8 |
22869 |
2582 |
- |
2586 |
= |
-4 |
* |
(1940 |
/ |
13405) |
= |
-0.57888847 |
11 |
22870 |
2606 |
- |
2628 |
= |
-22 |
* |
(1909 |
/ |
13405) |
= |
-3.13301006 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Glendale Unified
|
3 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-9
|
-2
|
-5
|
0
|
3
|
-13.0 |
-2.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 11.75
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -18.25
For the lines, you have the data necessary to plot the chart.