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 |
1262580 |
2379 |
- |
2436 |
= |
-57 |
* |
(18 |
/ |
78) |
= |
-13.15384611 |
4 |
1262583 |
2469 |
- |
2485 |
= |
-16 |
* |
(15 |
/ |
78) |
= |
-3.07692307 |
5 |
1262584 |
2535 |
- |
2528 |
= |
7 |
* |
(13 |
/ |
78) |
= |
1.16666666 |
6 |
1262587 |
2433 |
- |
2552 |
= |
-119 |
* |
(13 |
/ |
78) |
= |
-19.83333325 |
7 |
1262588 |
0 |
- |
2567 |
= |
|
* |
(9 |
/ |
78) |
= |
|
8 |
1262591 |
2421 |
- |
2586 |
= |
-165 |
* |
(10 |
/ |
78) |
= |
-21.15384612 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sausalito Marin City
|
-56 |
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 |
39365 |
2370 |
- |
2436 |
= |
-66 |
* |
(12 |
/ |
70) |
= |
-11.31428569 |
4 |
39366 |
2435 |
- |
2485 |
= |
-50 |
* |
(19 |
/ |
70) |
= |
-13.57142855 |
5 |
39368 |
2507 |
- |
2528 |
= |
-21 |
* |
(8 |
/ |
70) |
= |
-2.39999999 |
6 |
39370 |
2531 |
- |
2552 |
= |
-21 |
* |
(14 |
/ |
70) |
= |
-4.2 |
7 |
39373 |
0 |
- |
2567 |
= |
|
* |
(9 |
/ |
70) |
= |
|
8 |
39374 |
0 |
- |
2586 |
= |
|
* |
(8 |
/ |
70) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sausalito Marin City
|
-31 |
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 |
40376 |
2374 |
- |
2436 |
= |
-62 |
* |
(17 |
/ |
77) |
= |
-13.68831164 |
4 |
40378 |
0 |
- |
2485 |
= |
|
* |
(0 |
/ |
77) |
= |
|
5 |
40379 |
2451 |
- |
2528 |
= |
-77 |
* |
(13 |
/ |
77) |
= |
-12.99999994 |
6 |
40381 |
2422 |
- |
2552 |
= |
-130 |
* |
(12 |
/ |
77) |
= |
-20.25974015 |
7 |
40384 |
2506 |
- |
2567 |
= |
-61 |
* |
(14 |
/ |
77) |
= |
-11.09090904 |
8 |
40386 |
2469 |
- |
2586 |
= |
-117 |
* |
(13 |
/ |
77) |
= |
-19.75324666 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sausalito Marin City
|
-78 |
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 |
40393 |
2381 |
- |
2436 |
= |
-55 |
* |
(16 |
/ |
64) |
= |
-13.75 |
4 |
40394 |
2460 |
- |
2485 |
= |
-25 |
* |
(15 |
/ |
64) |
= |
-5.859375 |
5 |
40397 |
0 |
- |
2528 |
= |
|
* |
(0 |
/ |
64) |
= |
|
6 |
40398 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
64) |
= |
|
7 |
40401 |
0 |
- |
2567 |
= |
|
* |
(0 |
/ |
64) |
= |
|
8 |
40402 |
2520 |
- |
2586 |
= |
-66 |
* |
(11 |
/ |
64) |
= |
-11.34375 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sausalito Marin City
|
-31 |
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 |
40545 |
0 |
- |
2436 |
= |
|
* |
(6 |
/ |
53) |
= |
|
4 |
40546 |
2421 |
- |
2485 |
= |
-64 |
* |
(13 |
/ |
53) |
= |
-15.69811315 |
5 |
40547 |
2466 |
- |
2528 |
= |
-62 |
* |
(13 |
/ |
53) |
= |
-15.20754712 |
6 |
40548 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
53) |
= |
|
7 |
40549 |
2493 |
- |
2567 |
= |
-74 |
* |
(11 |
/ |
53) |
= |
-15.35849051 |
8 |
40550 |
0 |
- |
2586 |
= |
|
* |
(8 |
/ |
53) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sausalito Marin City
|
-46 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-56
|
-31
|
-78
|
-31
|
-46
|
-242.0 |
-48.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 8.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -105.4
For the lines, you have the data necessary to plot the chart.