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 |
213313 |
2460 |
- |
2436 |
= |
24 |
* |
(116 |
/ |
312)
|
= |
8.9230769 |
| 4 |
213316 |
2498 |
- |
2485 |
= |
13 |
* |
(95 |
/ |
312)
|
= |
3.95833333 |
| 5 |
213317 |
2555 |
- |
2528 |
= |
27 |
* |
(101 |
/ |
312)
|
= |
8.7403846 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Strandwood Elementary
|
22 |
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 |
6317 |
2472 |
- |
2436 |
= |
36 |
* |
(106 |
/ |
320)
|
= |
11.925 |
| 4 |
6319 |
2505 |
- |
2485 |
= |
20 |
* |
(116 |
/ |
320)
|
= |
7.25 |
| 5 |
6321 |
2538 |
- |
2528 |
= |
10 |
* |
(98 |
/ |
320)
|
= |
3.0625 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Strandwood Elementary
|
22 |
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 |
6493 |
2470 |
- |
2436 |
= |
34 |
* |
(94 |
/ |
314)
|
= |
10.17834394 |
| 4 |
6495 |
2518 |
- |
2485 |
= |
33 |
* |
(103 |
/ |
314)
|
= |
10.82484074 |
| 5 |
6497 |
2550 |
- |
2528 |
= |
22 |
* |
(117 |
/ |
314)
|
= |
8.19745221 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Strandwood Elementary
|
29 |
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 |
6495 |
2464 |
- |
2436 |
= |
28 |
* |
(97 |
/ |
296)
|
= |
9.17567566 |
| 4 |
6498 |
2514 |
- |
2485 |
= |
29 |
* |
(97 |
/ |
296)
|
= |
9.50337836 |
| 5 |
6499 |
2553 |
- |
2528 |
= |
25 |
* |
(102 |
/ |
296)
|
= |
8.61486485 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Strandwood Elementary
|
27 |
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 |
6553 |
2466 |
- |
2436 |
= |
30 |
* |
(98 |
/ |
296)
|
= |
9.93243243 |
| 4 |
6554 |
2513 |
- |
2485 |
= |
28 |
* |
(98 |
/ |
296)
|
= |
9.27027027 |
| 5 |
6555 |
2553 |
- |
2528 |
= |
25 |
* |
(100 |
/ |
296)
|
= |
8.44594593 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Strandwood Elementary
|
28 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
22
|
22
|
29
|
27
|
28
|
128.0 |
25.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 34.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 16.6
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:
