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 |
2569511 |
2380 |
- |
2436 |
= |
-56 |
* |
(1865 |
/ |
9911) |
= |
-10.53778628 |
4 |
2569513 |
2416 |
- |
2485 |
= |
-69 |
* |
(1814 |
/ |
9911) |
= |
-12.62899803 |
5 |
2569514 |
2435 |
- |
2528 |
= |
-93 |
* |
(1810 |
/ |
9911) |
= |
-16.98415895 |
6 |
2569517 |
2466 |
- |
2552 |
= |
-86 |
* |
(1581 |
/ |
9911) |
= |
-13.71869635 |
7 |
2569518 |
2487 |
- |
2567 |
= |
-80 |
* |
(1465 |
/ |
9911) |
= |
-11.82524464 |
8 |
2569520 |
2506 |
- |
2586 |
= |
-80 |
* |
(1376 |
/ |
9911) |
= |
-11.10685096 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Santa Maria-Bonita
|
-77 |
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 |
78298 |
2387 |
- |
2436 |
= |
-49 |
* |
(1881 |
/ |
10353) |
= |
-8.90263688 |
4 |
78299 |
2426 |
- |
2485 |
= |
-59 |
* |
(1864 |
/ |
10353) |
= |
-10.62262143 |
5 |
78302 |
2434 |
- |
2528 |
= |
-94 |
* |
(1819 |
/ |
10353) |
= |
-16.51559931 |
6 |
78303 |
2468 |
- |
2552 |
= |
-84 |
* |
(1805 |
/ |
10353) |
= |
-14.6450304 |
7 |
78305 |
2485 |
- |
2567 |
= |
-82 |
* |
(1536 |
/ |
10353) |
= |
-12.16574903 |
8 |
78307 |
2515 |
- |
2586 |
= |
-71 |
* |
(1448 |
/ |
10353) |
= |
-9.93026171 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Santa Maria-Bonita
|
-73 |
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 |
80455 |
2393 |
- |
2436 |
= |
-43 |
* |
(1837 |
/ |
10618) |
= |
-7.43934826 |
4 |
80457 |
2430 |
- |
2485 |
= |
-55 |
* |
(1860 |
/ |
10618) |
= |
-9.63458276 |
5 |
80459 |
2441 |
- |
2528 |
= |
-87 |
* |
(1843 |
/ |
10618) |
= |
-15.1008664 |
6 |
80460 |
2468 |
- |
2552 |
= |
-84 |
* |
(1814 |
/ |
10618) |
= |
-14.35072514 |
7 |
80463 |
2480 |
- |
2567 |
= |
-87 |
* |
(1760 |
/ |
10618) |
= |
-14.42079479 |
8 |
80465 |
2502 |
- |
2586 |
= |
-84 |
* |
(1504 |
/ |
10618) |
= |
-11.89828592 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Santa Maria-Bonita
|
-73 |
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 |
80611 |
2396 |
- |
2436 |
= |
-40 |
* |
(1741 |
/ |
10705) |
= |
-6.50537132 |
4 |
80614 |
2437 |
- |
2485 |
= |
-48 |
* |
(1809 |
/ |
10705) |
= |
-8.11134979 |
5 |
80615 |
2444 |
- |
2528 |
= |
-84 |
* |
(1848 |
/ |
10705) |
= |
-14.50088741 |
6 |
80618 |
2478 |
- |
2552 |
= |
-74 |
* |
(1860 |
/ |
10705) |
= |
-12.85754314 |
7 |
80619 |
2476 |
- |
2567 |
= |
-91 |
* |
(1745 |
/ |
10705) |
= |
-14.83372254 |
8 |
80622 |
2507 |
- |
2586 |
= |
-79 |
* |
(1702 |
/ |
10705) |
= |
-12.56029888 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Santa Maria-Bonita
|
-69 |
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 |
81131 |
2400 |
- |
2436 |
= |
-36 |
* |
(1920 |
/ |
10858) |
= |
-6.36581322 |
4 |
81132 |
2446 |
- |
2485 |
= |
-39 |
* |
(1728 |
/ |
10858) |
= |
-6.20666787 |
5 |
81133 |
2457 |
- |
2528 |
= |
-71 |
* |
(1824 |
/ |
10858) |
= |
-11.92705833 |
6 |
81134 |
2481 |
- |
2552 |
= |
-71 |
* |
(1845 |
/ |
10858) |
= |
-12.06437645 |
7 |
81135 |
2492 |
- |
2567 |
= |
-75 |
* |
(1811 |
/ |
10858) |
= |
-12.50920973 |
8 |
81136 |
2506 |
- |
2586 |
= |
-80 |
* |
(1730 |
/ |
10858) |
= |
-12.74636208 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Santa Maria-Bonita
|
-62 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-77
|
-73
|
-73
|
-69
|
-62
|
-354.0 |
-70.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -55.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -85.8
For the lines, you have the data necessary to plot the chart.