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 |
613385 |
2540 |
- |
2567 |
= |
-27 |
* |
(84 |
/ |
4945) |
= |
-0.45864509 |
8 |
613388 |
2558 |
- |
2586 |
= |
-28 |
* |
(103 |
/ |
4945) |
= |
-0.58321536 |
11 |
613389 |
2515 |
- |
2628 |
= |
-113 |
* |
(4758 |
/ |
4945) |
= |
-108.72679471 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Antelope Valley Union High
|
-110 |
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 |
19625 |
2534 |
- |
2567 |
= |
-33 |
* |
(189 |
/ |
5222) |
= |
-1.19436996 |
8 |
19627 |
2546 |
- |
2586 |
= |
-40 |
* |
(95 |
/ |
5222) |
= |
-0.72769052 |
11 |
19630 |
2511 |
- |
2628 |
= |
-117 |
* |
(4938 |
/ |
5222) |
= |
-110.63692072 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Antelope Valley Union High
|
-113 |
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 |
19920 |
2546 |
- |
2567 |
= |
-21 |
* |
(205 |
/ |
5410) |
= |
-0.79574861 |
8 |
19921 |
2554 |
- |
2586 |
= |
-32 |
* |
(187 |
/ |
5410) |
= |
-1.10609981 |
11 |
19923 |
2500 |
- |
2628 |
= |
-128 |
* |
(5018 |
/ |
5410) |
= |
-118.72532339 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Antelope Valley Union High
|
-121 |
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 |
19918 |
2514 |
- |
2567 |
= |
-53 |
* |
(215 |
/ |
5304) |
= |
-2.14837853 |
8 |
19920 |
2546 |
- |
2586 |
= |
-40 |
* |
(219 |
/ |
5304) |
= |
-1.65158368 |
11 |
19922 |
2493 |
- |
2628 |
= |
-135 |
* |
(4870 |
/ |
5304) |
= |
-123.95361987 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Antelope Valley Union High
|
-128 |
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 |
20102 |
2500 |
- |
2567 |
= |
-67 |
* |
(229 |
/ |
5287) |
= |
-2.9020238 |
8 |
20103 |
2503 |
- |
2586 |
= |
-83 |
* |
(250 |
/ |
5287) |
= |
-3.92472099 |
11 |
20104 |
2490 |
- |
2628 |
= |
-138 |
* |
(4808 |
/ |
5287) |
= |
-125.49725741 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Antelope Valley Union High
|
-132 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-110
|
-113
|
-121
|
-128
|
-132
|
-604.0 |
-120.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -93.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -147.8
For the lines, you have the data necessary to plot the chart.