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 |
449122 |
2483 |
- |
2436 |
= |
47 |
* |
(13 |
/ |
85) |
= |
7.18823527 |
4 |
449125 |
2491 |
- |
2485 |
= |
6 |
* |
(12 |
/ |
85) |
= |
0.84705882 |
5 |
449126 |
2518 |
- |
2528 |
= |
-10 |
* |
(14 |
/ |
85) |
= |
-1.64705882 |
6 |
449129 |
2506 |
- |
2552 |
= |
-46 |
* |
(14 |
/ |
85) |
= |
-7.57647057 |
7 |
449130 |
2608 |
- |
2567 |
= |
41 |
* |
(14 |
/ |
85) |
= |
6.75294116 |
8 |
449133 |
2611 |
- |
2586 |
= |
25 |
* |
(18 |
/ |
85) |
= |
5.29411763 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Magnolia Union Elementary
|
11 |
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 |
14178 |
2465 |
- |
2436 |
= |
29 |
* |
(14 |
/ |
83) |
= |
4.89156624 |
4 |
14179 |
2541 |
- |
2485 |
= |
56 |
* |
(13 |
/ |
83) |
= |
8.77108434 |
5 |
14181 |
2464 |
- |
2528 |
= |
-64 |
* |
(14 |
/ |
83) |
= |
-10.79518067 |
6 |
14184 |
2542 |
- |
2552 |
= |
-10 |
* |
(15 |
/ |
83) |
= |
-1.80722891 |
7 |
14185 |
2575 |
- |
2567 |
= |
8 |
* |
(13 |
/ |
83) |
= |
1.25301205 |
8 |
14188 |
2667 |
- |
2586 |
= |
81 |
* |
(14 |
/ |
83) |
= |
13.66265054 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Magnolia Union Elementary
|
16 |
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 |
14513 |
2447 |
- |
2436 |
= |
11 |
* |
(15 |
/ |
88) |
= |
1.875 |
4 |
14514 |
2492 |
- |
2485 |
= |
7 |
* |
(14 |
/ |
88) |
= |
1.11363636 |
5 |
14517 |
2557 |
- |
2528 |
= |
29 |
* |
(13 |
/ |
88) |
= |
4.28409089 |
6 |
14519 |
2541 |
- |
2552 |
= |
-11 |
* |
(16 |
/ |
88) |
= |
-1.99999999 |
7 |
14521 |
2577 |
- |
2567 |
= |
10 |
* |
(16 |
/ |
88) |
= |
1.81818181 |
8 |
14523 |
2608 |
- |
2586 |
= |
22 |
* |
(14 |
/ |
88) |
= |
3.5 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Magnolia Union Elementary
|
11 |
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 |
14520 |
2438 |
- |
2436 |
= |
2 |
* |
(12 |
/ |
91) |
= |
0.26373626 |
4 |
14523 |
2473 |
- |
2485 |
= |
-12 |
* |
(16 |
/ |
91) |
= |
-2.1098901 |
5 |
14524 |
2511 |
- |
2528 |
= |
-17 |
* |
(15 |
/ |
91) |
= |
-2.80219779 |
6 |
14527 |
2594 |
- |
2552 |
= |
42 |
* |
(15 |
/ |
91) |
= |
6.92307689 |
7 |
14528 |
2568 |
- |
2567 |
= |
1 |
* |
(16 |
/ |
91) |
= |
0.17582418 |
8 |
14531 |
2621 |
- |
2586 |
= |
35 |
* |
(17 |
/ |
91) |
= |
6.53846151 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Magnolia Union Elementary
|
9 |
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 |
14612 |
2453 |
- |
2436 |
= |
17 |
* |
(15 |
/ |
89) |
= |
2.86516853 |
4 |
14613 |
2493 |
- |
2485 |
= |
8 |
* |
(13 |
/ |
89) |
= |
1.16853932 |
5 |
14614 |
2519 |
- |
2528 |
= |
-9 |
* |
(16 |
/ |
89) |
= |
-1.61797752 |
6 |
14615 |
2563 |
- |
2552 |
= |
11 |
* |
(14 |
/ |
89) |
= |
1.73033707 |
7 |
14616 |
2639 |
- |
2567 |
= |
72 |
* |
(15 |
/ |
89) |
= |
12.1348314 |
8 |
14617 |
2627 |
- |
2586 |
= |
41 |
* |
(16 |
/ |
89) |
= |
7.37078648 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Magnolia Union Elementary
|
24 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
11
|
16
|
11
|
9
|
24
|
71.0 |
14.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 32.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -3.8
For the lines, you have the data necessary to plot the chart.