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 |
961616 |
2396 |
- |
2436 |
= |
-40 |
* |
(98 |
/ |
266)
|
= |
-14.73684208 |
| 4 |
961619 |
2432 |
- |
2485 |
= |
-53 |
* |
(73 |
/ |
266)
|
= |
-14.54511277 |
| 5 |
961620 |
2450 |
- |
2528 |
= |
-78 |
* |
(95 |
/ |
266)
|
= |
-27.85714285 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sunny Brae Avenue Elementary
|
-57 |
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 |
30430 |
2401 |
- |
2436 |
= |
-35 |
* |
(89 |
/ |
252)
|
= |
-12.36111111 |
| 4 |
30432 |
2437 |
- |
2485 |
= |
-48 |
* |
(94 |
/ |
252)
|
= |
-17.9047619 |
| 5 |
30435 |
2419 |
- |
2528 |
= |
-109 |
* |
(69 |
/ |
252)
|
= |
-29.84523801 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sunny Brae Avenue Elementary
|
-60 |
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 |
30996 |
2373 |
- |
2436 |
= |
-63 |
* |
(104 |
/ |
280)
|
= |
-23.39999997 |
| 4 |
30998 |
2417 |
- |
2485 |
= |
-68 |
* |
(88 |
/ |
280)
|
= |
-21.37142855 |
| 5 |
31000 |
2443 |
- |
2528 |
= |
-85 |
* |
(88 |
/ |
280)
|
= |
-26.71428569 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sunny Brae Avenue Elementary
|
-71 |
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 |
31043 |
2389 |
- |
2436 |
= |
-47 |
* |
(94 |
/ |
283)
|
= |
-15.61130742 |
| 4 |
31045 |
2407 |
- |
2485 |
= |
-78 |
* |
(99 |
/ |
283)
|
= |
-27.28621904 |
| 5 |
31047 |
2443 |
- |
2528 |
= |
-85 |
* |
(90 |
/ |
283)
|
= |
-27.03180209 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sunny Brae Avenue Elementary
|
-70 |
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 |
31218 |
2379 |
- |
2436 |
= |
-57 |
* |
(78 |
/ |
265)
|
= |
-16.77735845 |
| 4 |
31219 |
2435 |
- |
2485 |
= |
-50 |
* |
(92 |
/ |
265)
|
= |
-17.35849055 |
| 5 |
31220 |
2425 |
- |
2528 |
= |
-103 |
* |
(95 |
/ |
265)
|
= |
-36.9245283 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sunny Brae Avenue Elementary
|
-71 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-57
|
-60
|
-71
|
-70
|
-71
|
-329.0 |
-65.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -83.8
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:
