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 |
1521962 |
2457 |
- |
2436 |
= |
21 |
* |
(1728 |
/ |
12834) |
= |
2.82748948 |
4 |
1521965 |
2495 |
- |
2485 |
= |
10 |
* |
(1786 |
/ |
12834) |
= |
1.39161601 |
5 |
1521966 |
2529 |
- |
2528 |
= |
1 |
* |
(1825 |
/ |
12834) |
= |
0.14220041 |
6 |
1521969 |
2563 |
- |
2552 |
= |
11 |
* |
(1867 |
/ |
12834) |
= |
1.60020258 |
7 |
1521970 |
2576 |
- |
2567 |
= |
9 |
* |
(1895 |
/ |
12834) |
= |
1.328892 |
8 |
1521973 |
2594 |
- |
2586 |
= |
8 |
* |
(1870 |
/ |
12834) |
= |
1.16565373 |
11 |
1521974 |
2612 |
- |
2628 |
= |
-16 |
* |
(1863 |
/ |
12834) |
= |
-2.32258064 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Placentia-Yorba Linda Unified
|
6 |
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 |
47672 |
2457 |
- |
2436 |
= |
21 |
* |
(1708 |
/ |
13102) |
= |
2.7375973 |
4 |
47675 |
2506 |
- |
2485 |
= |
21 |
* |
(1777 |
/ |
13102) |
= |
2.84819111 |
5 |
47676 |
2540 |
- |
2528 |
= |
12 |
* |
(1839 |
/ |
13102) |
= |
1.684323 |
6 |
47678 |
2578 |
- |
2552 |
= |
26 |
* |
(1888 |
/ |
13102) |
= |
3.74660356 |
7 |
47680 |
2573 |
- |
2567 |
= |
6 |
* |
(1921 |
/ |
13102) |
= |
0.87971302 |
8 |
47683 |
2605 |
- |
2586 |
= |
19 |
* |
(1942 |
/ |
13102) |
= |
2.81621126 |
11 |
47684 |
2623 |
- |
2628 |
= |
-5 |
* |
(2027 |
/ |
13102) |
= |
-0.77354602 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Placentia-Yorba Linda Unified
|
14 |
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 |
48966 |
2468 |
- |
2436 |
= |
32 |
* |
(1854 |
/ |
13198) |
= |
4.49522653 |
4 |
48968 |
2498 |
- |
2485 |
= |
13 |
* |
(1755 |
/ |
13198) |
= |
1.72867101 |
5 |
48971 |
2540 |
- |
2528 |
= |
12 |
* |
(1819 |
/ |
13198) |
= |
1.65388694 |
6 |
48973 |
2578 |
- |
2552 |
= |
26 |
* |
(1884 |
/ |
13198) |
= |
3.71147143 |
7 |
48974 |
2585 |
- |
2567 |
= |
18 |
* |
(1954 |
/ |
13198) |
= |
2.66494923 |
8 |
48977 |
2601 |
- |
2586 |
= |
15 |
* |
(1893 |
/ |
13198) |
= |
2.15146233 |
11 |
48978 |
2634 |
- |
2628 |
= |
6 |
* |
(2039 |
/ |
13198) |
= |
0.92695863 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Placentia-Yorba Linda Unified
|
17 |
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 |
48989 |
2465 |
- |
2436 |
= |
29 |
* |
(1675 |
/ |
13065) |
= |
3.71794871 |
4 |
48991 |
2506 |
- |
2485 |
= |
21 |
* |
(1901 |
/ |
13065) |
= |
3.05556829 |
5 |
48992 |
2535 |
- |
2528 |
= |
7 |
* |
(1781 |
/ |
13065) |
= |
0.95422885 |
6 |
48995 |
2582 |
- |
2552 |
= |
30 |
* |
(1839 |
/ |
13065) |
= |
4.22273247 |
7 |
48997 |
2581 |
- |
2567 |
= |
14 |
* |
(1949 |
/ |
13065) |
= |
2.08848066 |
8 |
48998 |
2597 |
- |
2586 |
= |
11 |
* |
(1947 |
/ |
13065) |
= |
1.63926521 |
11 |
49000 |
2622 |
- |
2628 |
= |
-6 |
* |
(1973 |
/ |
13065) |
= |
-0.90608495 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Placentia-Yorba Linda Unified
|
15 |
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 |
49191 |
2463 |
- |
2436 |
= |
27 |
* |
(1712 |
/ |
12942) |
= |
3.57162726 |
4 |
49192 |
2506 |
- |
2485 |
= |
21 |
* |
(1721 |
/ |
12942) |
= |
2.79253592 |
5 |
49193 |
2540 |
- |
2528 |
= |
12 |
* |
(1944 |
/ |
12942) |
= |
1.80250348 |
6 |
49194 |
2570 |
- |
2552 |
= |
18 |
* |
(1765 |
/ |
12942) |
= |
2.45479833 |
7 |
49195 |
2590 |
- |
2567 |
= |
23 |
* |
(1859 |
/ |
12942) |
= |
3.30373976 |
8 |
49196 |
2598 |
- |
2586 |
= |
12 |
* |
(1953 |
/ |
12942) |
= |
1.8108484 |
11 |
49197 |
2632 |
- |
2628 |
= |
4 |
* |
(1988 |
/ |
12942) |
= |
0.61443362 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Placentia-Yorba Linda Unified
|
16 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
6
|
14
|
17
|
15
|
16
|
68.0 |
13.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 25.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 1.6
For the lines, you have the data necessary to plot the chart.