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 |
213883 |
2469 |
- |
2436 |
= |
33 |
* |
(97 |
/ |
281)
|
= |
11.39145906 |
| 4 |
213884 |
2497 |
- |
2485 |
= |
12 |
* |
(88 |
/ |
281)
|
= |
3.75800711 |
| 5 |
213887 |
2527 |
- |
2528 |
= |
-1 |
* |
(96 |
/ |
281)
|
= |
-0.34163701 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Valhalla Elementary
|
15 |
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 |
6333 |
2470 |
- |
2436 |
= |
34 |
* |
(87 |
/ |
280)
|
= |
10.56428569 |
| 4 |
6335 |
2515 |
- |
2485 |
= |
30 |
* |
(99 |
/ |
280)
|
= |
10.60714284 |
| 5 |
6338 |
2520 |
- |
2528 |
= |
-8 |
* |
(94 |
/ |
280)
|
= |
-2.68571428 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Valhalla Elementary
|
18 |
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 |
6509 |
2487 |
- |
2436 |
= |
51 |
* |
(86 |
/ |
274)
|
= |
16.00729926 |
| 4 |
6512 |
2528 |
- |
2485 |
= |
43 |
* |
(86 |
/ |
274)
|
= |
13.49635036 |
| 5 |
6514 |
2539 |
- |
2528 |
= |
11 |
* |
(102 |
/ |
274)
|
= |
4.0948905 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Valhalla Elementary
|
34 |
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 |
6512 |
2484 |
- |
2436 |
= |
48 |
* |
(81 |
/ |
256)
|
= |
15.1875 |
| 4 |
6513 |
2522 |
- |
2485 |
= |
37 |
* |
(88 |
/ |
256)
|
= |
12.71875 |
| 5 |
6516 |
2538 |
- |
2528 |
= |
10 |
* |
(87 |
/ |
256)
|
= |
3.3984375 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Valhalla Elementary
|
31 |
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 |
6569 |
2482 |
- |
2436 |
= |
46 |
* |
(87 |
/ |
265)
|
= |
15.10188676 |
| 4 |
6570 |
2538 |
- |
2485 |
= |
53 |
* |
(84 |
/ |
265)
|
= |
16.8 |
| 5 |
6571 |
2553 |
- |
2528 |
= |
25 |
* |
(94 |
/ |
265)
|
= |
8.86792453 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Valhalla Elementary
|
41 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
15
|
18
|
34
|
31
|
41
|
139.0 |
27.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 57.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -2.2
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:
