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 |
2272060 |
2421 |
- |
2436 |
= |
-15 |
* |
(92 |
/ |
263)
|
= |
-5.24714828 |
| 4 |
2272063 |
2425 |
- |
2485 |
= |
-60 |
* |
(73 |
/ |
263)
|
= |
-16.65399234 |
| 5 |
2272064 |
2490 |
- |
2528 |
= |
-38 |
* |
(98 |
/ |
263)
|
= |
-14.15969581 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Walker Elementary
|
-36 |
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 |
69676 |
2420 |
- |
2436 |
= |
-16 |
* |
(67 |
/ |
224)
|
= |
-4.78571427 |
| 4 |
69678 |
2452 |
- |
2485 |
= |
-33 |
* |
(90 |
/ |
224)
|
= |
-13.25892856 |
| 5 |
69679 |
2459 |
- |
2528 |
= |
-69 |
* |
(67 |
/ |
224)
|
= |
-20.6383928 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Walker Elementary
|
-39 |
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 |
71509 |
2410 |
- |
2436 |
= |
-26 |
* |
(72 |
/ |
229)
|
= |
-8.17467248 |
| 4 |
71511 |
2491 |
- |
2485 |
= |
6 |
* |
(60 |
/ |
229)
|
= |
1.5720524 |
| 5 |
71513 |
2498 |
- |
2528 |
= |
-30 |
* |
(97 |
/ |
229)
|
= |
-12.70742358 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Walker Elementary
|
-19 |
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 |
71654 |
2446 |
- |
2436 |
= |
10 |
* |
(45 |
/ |
176)
|
= |
2.55681818 |
| 4 |
71655 |
2462 |
- |
2485 |
= |
-23 |
* |
(68 |
/ |
176)
|
= |
-8.88636363 |
| 5 |
71658 |
2505 |
- |
2528 |
= |
-23 |
* |
(63 |
/ |
176)
|
= |
-8.23295454 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Walker Elementary
|
-15 |
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 |
72139 |
2427 |
- |
2436 |
= |
-9 |
* |
(77 |
/ |
201)
|
= |
-3.44776119 |
| 4 |
72140 |
2485 |
- |
2485 |
= |
0 |
* |
(49 |
/ |
201)
|
= |
0.0 |
| 5 |
72141 |
2464 |
- |
2528 |
= |
-64 |
* |
(75 |
/ |
201)
|
= |
-23.88059699 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Walker Elementary
|
-27 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-36
|
-39
|
-19
|
-15
|
-27
|
-136.0 |
-27.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 2.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -57.2
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:
