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 |
1006896 |
2369 |
- |
2436 |
= |
-67 |
* |
(112 |
/ |
320)
|
= |
-23.45 |
| 4 |
1006899 |
2430 |
- |
2485 |
= |
-55 |
* |
(109 |
/ |
320)
|
= |
-18.734375 |
| 5 |
1006900 |
2430 |
- |
2528 |
= |
-98 |
* |
(99 |
/ |
320)
|
= |
-30.31875 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sara Coughlin Elementary
|
-73 |
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 |
31775 |
2373 |
- |
2436 |
= |
-63 |
* |
(94 |
/ |
297)
|
= |
-19.93939391 |
| 4 |
31776 |
2414 |
- |
2485 |
= |
-71 |
* |
(107 |
/ |
297)
|
= |
-25.57912456 |
| 5 |
31779 |
2431 |
- |
2528 |
= |
-97 |
* |
(96 |
/ |
297)
|
= |
-31.35353533 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sara Coughlin Elementary
|
-77 |
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 |
32328 |
2376 |
- |
2436 |
= |
-60 |
* |
(104 |
/ |
294)
|
= |
-21.22448976 |
| 4 |
32329 |
2416 |
- |
2485 |
= |
-69 |
* |
(88 |
/ |
294)
|
= |
-20.65306116 |
| 5 |
32331 |
2425 |
- |
2528 |
= |
-103 |
* |
(102 |
/ |
294)
|
= |
-35.73469383 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sara Coughlin Elementary
|
-78 |
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 |
32355 |
2393 |
- |
2436 |
= |
-43 |
* |
(109 |
/ |
288)
|
= |
-16.27430555 |
| 4 |
32357 |
2407 |
- |
2485 |
= |
-78 |
* |
(91 |
/ |
288)
|
= |
-24.64583332 |
| 5 |
32359 |
2432 |
- |
2528 |
= |
-96 |
* |
(88 |
/ |
288)
|
= |
-29.33333328 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sara Coughlin 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 |
32536 |
2390 |
- |
2436 |
= |
-46 |
* |
(80 |
/ |
273)
|
= |
-13.47985348 |
| 4 |
32537 |
2433 |
- |
2485 |
= |
-52 |
* |
(109 |
/ |
273)
|
= |
-20.76190475 |
| 5 |
32538 |
2421 |
- |
2528 |
= |
-107 |
* |
(84 |
/ |
273)
|
= |
-32.92307685 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sara Coughlin Elementary
|
-67 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-73
|
-77
|
-78
|
-70
|
-67
|
-365.0 |
-73.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -61.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -85.0
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:
