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 |
3 |
778093 |
2420 |
- |
2436 |
= |
-16 |
* |
(101 |
/ |
328)
|
= |
-4.92682926 |
4 |
778096 |
2448 |
- |
2485 |
= |
-37 |
* |
(114 |
/ |
328)
|
= |
-12.85975608 |
5 |
778097 |
2495 |
- |
2528 |
= |
-33 |
* |
(113 |
/ |
328)
|
= |
-11.36890244 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Twain Elementary
|
-29 |
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 |
3 |
24379 |
2425 |
- |
2436 |
= |
-11 |
* |
(95 |
/ |
329)
|
= |
-3.17629179 |
4 |
24380 |
2466 |
- |
2485 |
= |
-19 |
* |
(114 |
/ |
329)
|
= |
-6.58358662 |
5 |
24382 |
2466 |
- |
2528 |
= |
-62 |
* |
(120 |
/ |
329)
|
= |
-22.61398174 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Twain Elementary
|
-32 |
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 |
3 |
24879 |
2460 |
- |
2436 |
= |
24 |
* |
(98 |
/ |
321)
|
= |
7.3271028 |
4 |
24882 |
2485 |
- |
2485 |
= |
0 |
* |
(102 |
/ |
321)
|
= |
0.0 |
5 |
24883 |
2491 |
- |
2528 |
= |
-37 |
* |
(121 |
/ |
321)
|
= |
-13.94704048 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Twain Elementary
|
-7 |
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 |
3 |
24903 |
2459 |
- |
2436 |
= |
23 |
* |
(90 |
/ |
306)
|
= |
6.76470588 |
4 |
24905 |
2488 |
- |
2485 |
= |
3 |
* |
(112 |
/ |
306)
|
= |
1.09803921 |
5 |
24907 |
2513 |
- |
2528 |
= |
-15 |
* |
(104 |
/ |
306)
|
= |
-5.09803922 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Twain Elementary
|
3 |
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 |
3 |
25072 |
2455 |
- |
2436 |
= |
19 |
* |
(96 |
/ |
290)
|
= |
6.28965516 |
4 |
25073 |
2494 |
- |
2485 |
= |
9 |
* |
(89 |
/ |
290)
|
= |
2.76206896 |
5 |
25074 |
2522 |
- |
2528 |
= |
-6 |
* |
(105 |
/ |
290)
|
= |
-2.17241379 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Twain Elementary
|
7 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-29
|
-32
|
-7
|
3
|
7
|
-58.0 |
-11.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 42.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -65.6
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: