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 |
2146115 |
2376 |
- |
2436 |
= |
-60 |
* |
(21 |
/ |
114) |
= |
-11.05263156 |
4 |
2146116 |
2465 |
- |
2485 |
= |
-20 |
* |
(21 |
/ |
114) |
= |
-3.68421052 |
5 |
2146119 |
2497 |
- |
2528 |
= |
-31 |
* |
(21 |
/ |
114) |
= |
-5.71052631 |
6 |
2146120 |
2481 |
- |
2552 |
= |
-71 |
* |
(23 |
/ |
114) |
= |
-14.32456134 |
7 |
2146123 |
2519 |
- |
2567 |
= |
-48 |
* |
(16 |
/ |
114) |
= |
-6.7368421 |
8 |
2146124 |
2476 |
- |
2586 |
= |
-110 |
* |
(12 |
/ |
114) |
= |
-11.57894727 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Dehesa Elementary
|
-53 |
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 |
65854 |
2422 |
- |
2436 |
= |
-14 |
* |
(22 |
/ |
127) |
= |
-2.42519684 |
4 |
65857 |
2450 |
- |
2485 |
= |
-35 |
* |
(24 |
/ |
127) |
= |
-6.6141732 |
5 |
65859 |
2486 |
- |
2528 |
= |
-42 |
* |
(22 |
/ |
127) |
= |
-7.27559053 |
6 |
65861 |
2489 |
- |
2552 |
= |
-63 |
* |
(19 |
/ |
127) |
= |
-9.42519684 |
7 |
65862 |
2503 |
- |
2567 |
= |
-64 |
* |
(21 |
/ |
127) |
= |
-10.58267712 |
8 |
65864 |
2530 |
- |
2586 |
= |
-56 |
* |
(17 |
/ |
127) |
= |
-7.49606295 |
11 |
65867 |
0 |
- |
2628 |
= |
|
* |
(2 |
/ |
127) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Dehesa Elementary
|
-44 |
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 |
67679 |
2431 |
- |
2436 |
= |
-5 |
* |
(15 |
/ |
105) |
= |
-0.71428571 |
4 |
67681 |
2489 |
- |
2485 |
= |
4 |
* |
(21 |
/ |
105) |
= |
0.8 |
5 |
67682 |
2502 |
- |
2528 |
= |
-26 |
* |
(24 |
/ |
105) |
= |
-5.94285713 |
6 |
67684 |
2479 |
- |
2552 |
= |
-73 |
* |
(19 |
/ |
105) |
= |
-13.20952374 |
7 |
67687 |
2465 |
- |
2567 |
= |
-102 |
* |
(11 |
/ |
105) |
= |
-10.68571421 |
8 |
67689 |
2498 |
- |
2586 |
= |
-88 |
* |
(15 |
/ |
105) |
= |
-12.5714285 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Dehesa Elementary
|
-42 |
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 |
67786 |
2373 |
- |
2436 |
= |
-63 |
* |
(16 |
/ |
95) |
= |
-10.61052628 |
4 |
67788 |
2509 |
- |
2485 |
= |
24 |
* |
(16 |
/ |
95) |
= |
4.04210525 |
5 |
67790 |
2536 |
- |
2528 |
= |
8 |
* |
(21 |
/ |
95) |
= |
1.76842105 |
6 |
67792 |
2479 |
- |
2552 |
= |
-73 |
* |
(14 |
/ |
95) |
= |
-10.75789473 |
7 |
67794 |
2517 |
- |
2567 |
= |
-50 |
* |
(15 |
/ |
95) |
= |
-7.8947368 |
8 |
67796 |
2498 |
- |
2586 |
= |
-88 |
* |
(13 |
/ |
95) |
= |
-12.04210524 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Dehesa Elementary
|
-35 |
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 |
68304 |
2425 |
- |
2436 |
= |
-11 |
* |
(16 |
/ |
92) |
= |
-1.91304347 |
4 |
68305 |
2457 |
- |
2485 |
= |
-28 |
* |
(15 |
/ |
92) |
= |
-4.56521738 |
5 |
68306 |
2480 |
- |
2528 |
= |
-48 |
* |
(17 |
/ |
92) |
= |
-8.86956518 |
6 |
68307 |
2518 |
- |
2552 |
= |
-34 |
* |
(18 |
/ |
92) |
= |
-6.65217388 |
7 |
68308 |
2526 |
- |
2567 |
= |
-41 |
* |
(13 |
/ |
92) |
= |
-5.79347823 |
8 |
68309 |
2510 |
- |
2586 |
= |
-76 |
* |
(13 |
/ |
92) |
= |
-10.73913037 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Dehesa Elementary
|
-39 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-53
|
-44
|
-42
|
-35
|
-39
|
-213.0 |
-42.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -24.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -60.6
For the lines, you have the data necessary to plot the chart.