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 |
11 |
3012652 |
2555 |
- |
2628 |
= |
-73 |
* |
(316 |
/ |
316) |
= |
-73.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Red Bluff Joint Union High
|
-73 |
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 |
8 |
92374 |
0 |
- |
2586 |
= |
|
* |
(0 |
/ |
354) |
= |
|
11 |
92375 |
2532 |
- |
2628 |
= |
-96 |
* |
(354 |
/ |
354) |
= |
-96.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Red Bluff Joint Union High
|
-96 |
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 |
95168 |
2525 |
- |
2628 |
= |
-103 |
* |
(347 |
/ |
347) |
= |
-103.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Red Bluff Joint Union High
|
-103 |
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 |
95333 |
2556 |
- |
2628 |
= |
-72 |
* |
(349 |
/ |
349) |
= |
-72.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Red Bluff Joint Union High
|
-72 |
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 |
95992 |
2541 |
- |
2628 |
= |
-87 |
* |
(409 |
/ |
409) |
= |
-87.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Red Bluff Joint Union High
|
-87 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-73
|
-96
|
-103
|
-72
|
-87
|
-431.0 |
-86.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -125.2
For the lines, you have the data necessary to plot the chart.