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 |
7 |
1417218 |
2512 |
- |
2567 |
= |
-55 |
* |
(4930 |
/ |
14732) |
= |
-18.4055118 |
8 |
1417219 |
2520 |
- |
2586 |
= |
-66 |
* |
(5036 |
/ |
14732) |
= |
-22.56149874 |
11 |
1417221 |
2559 |
- |
2628 |
= |
-69 |
* |
(4766 |
/ |
14732) |
= |
-22.32242736 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Anaheim Union High
|
-63 |
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 |
7 |
44714 |
2511 |
- |
2567 |
= |
-56 |
* |
(5022 |
/ |
14799) |
= |
-19.00344617 |
8 |
44716 |
2521 |
- |
2586 |
= |
-65 |
* |
(4913 |
/ |
14799) |
= |
-21.57882285 |
11 |
44719 |
2558 |
- |
2628 |
= |
-70 |
* |
(4864 |
/ |
14799) |
= |
-23.00695992 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Anaheim Union High
|
-64 |
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 |
7 |
45886 |
2500 |
- |
2567 |
= |
-67 |
* |
(4903 |
/ |
14850) |
= |
-22.12127945 |
8 |
45888 |
2518 |
- |
2586 |
= |
-68 |
* |
(4988 |
/ |
14850) |
= |
-22.84067334 |
11 |
45890 |
2552 |
- |
2628 |
= |
-76 |
* |
(4959 |
/ |
14850) |
= |
-25.37939387 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Anaheim Union High
|
-70 |
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 |
7 |
45902 |
2500 |
- |
2567 |
= |
-67 |
* |
(4809 |
/ |
14467) |
= |
-22.27158357 |
8 |
45904 |
2508 |
- |
2586 |
= |
-78 |
* |
(4841 |
/ |
14467) |
= |
-26.10064283 |
11 |
45907 |
2542 |
- |
2628 |
= |
-86 |
* |
(4817 |
/ |
14467) |
= |
-28.63496231 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Anaheim Union High
|
-77 |
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 |
7 |
46083 |
2500 |
- |
2567 |
= |
-67 |
* |
(4888 |
/ |
14287) |
= |
-22.92265694 |
8 |
46084 |
2508 |
- |
2586 |
= |
-78 |
* |
(4749 |
/ |
14287) |
= |
-25.92720647 |
11 |
46085 |
2548 |
- |
2628 |
= |
-80 |
* |
(4650 |
/ |
14287) |
= |
-26.03765656 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Anaheim Union High
|
-75 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-63
|
-64
|
-70
|
-77
|
-75
|
-349.0 |
-69.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -51.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.8
For the lines, you have the data necessary to plot the chart.