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 |
213004 |
2425 |
- |
2436 |
= |
-11 |
* |
(73 |
/ |
193)
|
= |
-4.16062175 |
| 4 |
213005 |
2461 |
- |
2485 |
= |
-24 |
* |
(61 |
/ |
193)
|
= |
-7.58549222 |
| 5 |
213008 |
2483 |
- |
2528 |
= |
-45 |
* |
(59 |
/ |
193)
|
= |
-13.75647665 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Silverwood Elementary
|
-26 |
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 |
6309 |
2456 |
- |
2436 |
= |
20 |
* |
(70 |
/ |
214)
|
= |
6.54205606 |
| 4 |
6311 |
2481 |
- |
2485 |
= |
-4 |
* |
(81 |
/ |
214)
|
= |
-1.51401869 |
| 5 |
6314 |
2508 |
- |
2528 |
= |
-20 |
* |
(63 |
/ |
214)
|
= |
-5.88785046 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Silverwood Elementary
|
-1 |
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 |
6485 |
2430 |
- |
2436 |
= |
-6 |
* |
(80 |
/ |
229)
|
= |
-2.09606987 |
| 4 |
6487 |
2503 |
- |
2485 |
= |
18 |
* |
(68 |
/ |
229)
|
= |
5.34497816 |
| 5 |
6489 |
2525 |
- |
2528 |
= |
-3 |
* |
(81 |
/ |
229)
|
= |
-1.06113537 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Silverwood Elementary
|
2 |
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 |
6487 |
2465 |
- |
2436 |
= |
29 |
* |
(59 |
/ |
201)
|
= |
8.5124378 |
| 4 |
6490 |
2472 |
- |
2485 |
= |
-13 |
* |
(75 |
/ |
201)
|
= |
-4.85074626 |
| 5 |
6491 |
2538 |
- |
2528 |
= |
10 |
* |
(67 |
/ |
201)
|
= |
3.33333333 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Silverwood Elementary
|
7 |
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 |
6545 |
2464 |
- |
2436 |
= |
28 |
* |
(79 |
/ |
213)
|
= |
10.3849765 |
| 4 |
6546 |
2514 |
- |
2485 |
= |
29 |
* |
(64 |
/ |
213)
|
= |
8.71361501 |
| 5 |
6547 |
2487 |
- |
2528 |
= |
-41 |
* |
(70 |
/ |
213)
|
= |
-13.47417838 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Silverwood Elementary
|
6 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-26
|
-1
|
2
|
7
|
6
|
-12.0 |
-2.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 36.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -41.4
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:
