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 |
8 |
1792661 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
60) |
= |
|
11 |
1792662 |
2399 |
- |
2628 |
= |
-229 |
* |
(60 |
/ |
60) |
= |
-229.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for California Education Authority (CEA) Headquarters
|
-229 |
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 |
11 |
55607 |
2387 |
- |
2628 |
= |
-241 |
* |
(121 |
/ |
121) |
= |
-241.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for California Education Authority (CEA) Headquarters
|
-241 |
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 |
11 |
57231 |
2405 |
- |
2628 |
= |
-223 |
* |
(69 |
/ |
69) |
= |
-223.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for California Education Authority (CEA) Headquarters
|
-223 |
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 |
11 |
57343 |
2381 |
- |
2628 |
= |
-247 |
* |
(82 |
/ |
82) |
= |
-247.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for California Education Authority (CEA) Headquarters
|
-247 |
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 |
11 |
57593 |
2377 |
- |
2628 |
= |
-251 |
* |
(98 |
/ |
98) |
= |
-251.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for California Education Authority (CEA) Headquarters
|
-251 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-229
|
-241
|
-223
|
-247
|
-251
|
-1191.0 |
-238.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -205.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -271.2
For the lines, you have the data necessary to plot the chart.