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 |
1653508 |
2428 |
- |
2436 |
= |
-8 |
* |
(3935 |
/ |
28197) |
= |
-1.11643082 |
4 |
1653509 |
2462 |
- |
2485 |
= |
-23 |
* |
(3986 |
/ |
28197) |
= |
-3.25133879 |
5 |
1653512 |
2493 |
- |
2528 |
= |
-35 |
* |
(3955 |
/ |
28197) |
= |
-4.90921018 |
6 |
1653513 |
2516 |
- |
2552 |
= |
-36 |
* |
(4102 |
/ |
28197) |
= |
-5.23715288 |
7 |
1653516 |
2531 |
- |
2567 |
= |
-36 |
* |
(4004 |
/ |
28197) |
= |
-5.11203319 |
8 |
1653517 |
2533 |
- |
2586 |
= |
-53 |
* |
(4041 |
/ |
28197) |
= |
-7.59559525 |
11 |
1653520 |
2566 |
- |
2628 |
= |
-62 |
* |
(4174 |
/ |
28197) |
= |
-9.17785578 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Corona-Norco Unified
|
-36 |
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 |
51653 |
2443 |
- |
2436 |
= |
7 |
* |
(3924 |
/ |
28223) |
= |
0.97324877 |
4 |
51654 |
2481 |
- |
2485 |
= |
-4 |
* |
(3973 |
/ |
28223) |
= |
-0.56308684 |
5 |
51657 |
2501 |
- |
2528 |
= |
-27 |
* |
(4028 |
/ |
28223) |
= |
-3.85345285 |
6 |
51658 |
2534 |
- |
2552 |
= |
-18 |
* |
(4031 |
/ |
28223) |
= |
-2.5708819 |
7 |
51661 |
2538 |
- |
2567 |
= |
-29 |
* |
(4122 |
/ |
28223) |
= |
-4.2354817 |
8 |
51662 |
2553 |
- |
2586 |
= |
-33 |
* |
(3997 |
/ |
28223) |
= |
-4.67352867 |
11 |
51665 |
2580 |
- |
2628 |
= |
-48 |
* |
(4148 |
/ |
28223) |
= |
-7.0546717 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Corona-Norco Unified
|
-22 |
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 |
53153 |
2443 |
- |
2436 |
= |
7 |
* |
(3791 |
/ |
28328) |
= |
0.93677633 |
4 |
53156 |
2485 |
- |
2485 |
= |
0 |
* |
(3958 |
/ |
28328) |
= |
0.0 |
5 |
53157 |
2506 |
- |
2528 |
= |
-22 |
* |
(4061 |
/ |
28328) |
= |
-3.15384071 |
6 |
53159 |
2533 |
- |
2552 |
= |
-19 |
* |
(4116 |
/ |
28328) |
= |
-2.76066082 |
7 |
53161 |
2541 |
- |
2567 |
= |
-26 |
* |
(4074 |
/ |
28328) |
= |
-3.73919796 |
8 |
53164 |
2554 |
- |
2586 |
= |
-32 |
* |
(4155 |
/ |
28328) |
= |
-4.69358938 |
11 |
53166 |
2590 |
- |
2628 |
= |
-38 |
* |
(4173 |
/ |
28328) |
= |
-5.59778308 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Corona-Norco Unified
|
-19 |
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 |
53242 |
2443 |
- |
2436 |
= |
7 |
* |
(3679 |
/ |
27894) |
= |
0.92324514 |
4 |
53244 |
2486 |
- |
2485 |
= |
1 |
* |
(3883 |
/ |
27894) |
= |
0.13920556 |
5 |
53246 |
2514 |
- |
2528 |
= |
-14 |
* |
(4012 |
/ |
27894) |
= |
-2.013623 |
6 |
53248 |
2537 |
- |
2552 |
= |
-15 |
* |
(4095 |
/ |
27894) |
= |
-2.20208646 |
7 |
53250 |
2537 |
- |
2567 |
= |
-30 |
* |
(4029 |
/ |
27894) |
= |
-4.33318992 |
8 |
53252 |
2551 |
- |
2586 |
= |
-35 |
* |
(4081 |
/ |
27894) |
= |
-5.12063524 |
11 |
53254 |
2584 |
- |
2628 |
= |
-44 |
* |
(4115 |
/ |
27894) |
= |
-6.49100162 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Corona-Norco Unified
|
-19 |
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 |
53483 |
2446 |
- |
2436 |
= |
10 |
* |
(3780 |
/ |
27738) |
= |
1.36275146 |
4 |
53484 |
2489 |
- |
2485 |
= |
4 |
* |
(3720 |
/ |
27738) |
= |
0.53644819 |
5 |
53485 |
2516 |
- |
2528 |
= |
-12 |
* |
(3929 |
/ |
27738) |
= |
-1.69976206 |
6 |
53486 |
2547 |
- |
2552 |
= |
-5 |
* |
(4041 |
/ |
27738) |
= |
-0.7284231 |
7 |
53487 |
2541 |
- |
2567 |
= |
-26 |
* |
(4100 |
/ |
27738) |
= |
-3.84310332 |
8 |
53488 |
2550 |
- |
2586 |
= |
-36 |
* |
(4091 |
/ |
27738) |
= |
-5.30953924 |
11 |
53489 |
2589 |
- |
2628 |
= |
-39 |
* |
(4077 |
/ |
27738) |
= |
-5.73231664 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Corona-Norco Unified
|
-15 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-36
|
-22
|
-19
|
-19
|
-15
|
-111.0 |
-22.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 1.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -46.2
For the lines, you have the data necessary to plot the chart.