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 |
6 |
991681 |
2461 |
- |
2552 |
= |
-91 |
* |
(683 |
/ |
2140)
|
= |
-29.0434579 |
7 |
991682 |
2479 |
- |
2567 |
= |
-88 |
* |
(706 |
/ |
2140)
|
= |
-29.0317757 |
8 |
991685 |
2496 |
- |
2586 |
= |
-90 |
* |
(751 |
/ |
2140)
|
= |
-31.58411211 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for South Gate Middle
|
-90 |
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 |
6 |
31327 |
2462 |
- |
2552 |
= |
-90 |
* |
(639 |
/ |
2023)
|
= |
-28.42807707 |
7 |
31328 |
2476 |
- |
2567 |
= |
-91 |
* |
(693 |
/ |
2023)
|
= |
-31.17301032 |
8 |
31330 |
2504 |
- |
2586 |
= |
-82 |
* |
(691 |
/ |
2023)
|
= |
-28.0088976 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for South Gate Middle
|
-88 |
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 |
6 |
31888 |
2467 |
- |
2552 |
= |
-85 |
* |
(628 |
/ |
1948)
|
= |
-27.40246405 |
7 |
31889 |
2464 |
- |
2567 |
= |
-103 |
* |
(636 |
/ |
1948)
|
= |
-33.62833672 |
8 |
31891 |
2489 |
- |
2586 |
= |
-97 |
* |
(684 |
/ |
1948)
|
= |
-34.05954821 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for South Gate Middle
|
-95 |
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 |
6 |
31925 |
2465 |
- |
2552 |
= |
-87 |
* |
(611 |
/ |
1873)
|
= |
-28.38067264 |
7 |
31927 |
2483 |
- |
2567 |
= |
-84 |
* |
(632 |
/ |
1873)
|
= |
-28.34383339 |
8 |
31929 |
2494 |
- |
2586 |
= |
-92 |
* |
(630 |
/ |
1873)
|
= |
-30.94500794 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for South Gate Middle
|
-88 |
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 |
6 |
32102 |
2457 |
- |
2552 |
= |
-95 |
* |
(526 |
/ |
1753)
|
= |
-28.50541928 |
7 |
32103 |
2485 |
- |
2567 |
= |
-82 |
* |
(599 |
/ |
1753)
|
= |
-28.01939524 |
8 |
32104 |
2515 |
- |
2586 |
= |
-71 |
* |
(628 |
/ |
1753)
|
= |
-25.43525378 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for South Gate Middle
|
-82 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-90
|
-88
|
-95
|
-88
|
-82
|
-443.0 |
-88.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -76.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.6
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources: