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 |
92496 |
2382 |
- |
2436 |
= |
-54 |
* |
(63 |
/ |
197)
|
= |
-17.26903552 |
| 4 |
92497 |
2388 |
- |
2485 |
= |
-97 |
* |
(63 |
/ |
197)
|
= |
-31.02030454 |
| 5 |
92500 |
2406 |
- |
2528 |
= |
-122 |
* |
(71 |
/ |
197)
|
= |
-43.9695431 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Bridges Academy
|
-92 |
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 |
2601 |
2349 |
- |
2436 |
= |
-87 |
* |
(62 |
/ |
190)
|
= |
-28.38947364 |
| 4 |
2604 |
2375 |
- |
2485 |
= |
-110 |
* |
(66 |
/ |
190)
|
= |
-38.21052631 |
| 5 |
2606 |
2393 |
- |
2528 |
= |
-135 |
* |
(62 |
/ |
190)
|
= |
-44.05263152 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Bridges Academy
|
-111 |
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 |
2673 |
2351 |
- |
2436 |
= |
-85 |
* |
(73 |
/ |
204)
|
= |
-30.41666665 |
| 4 |
2676 |
2391 |
- |
2485 |
= |
-94 |
* |
(64 |
/ |
204)
|
= |
-29.49019606 |
| 5 |
2677 |
2386 |
- |
2528 |
= |
-142 |
* |
(67 |
/ |
204)
|
= |
-46.63725482 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Bridges Academy
|
-107 |
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 |
2677 |
2381 |
- |
2436 |
= |
-55 |
* |
(67 |
/ |
197)
|
= |
-18.70558371 |
| 4 |
2679 |
2407 |
- |
2485 |
= |
-78 |
* |
(68 |
/ |
197)
|
= |
-26.92385779 |
| 5 |
2681 |
2398 |
- |
2528 |
= |
-130 |
* |
(62 |
/ |
197)
|
= |
-40.91370556 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Bridges Academy
|
-87 |
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 |
2699 |
2366 |
- |
2436 |
= |
-70 |
* |
(83 |
/ |
214)
|
= |
-27.14953269 |
| 4 |
2700 |
2424 |
- |
2485 |
= |
-61 |
* |
(61 |
/ |
214)
|
= |
-17.38785041 |
| 5 |
2701 |
2417 |
- |
2528 |
= |
-111 |
* |
(70 |
/ |
214)
|
= |
-36.30841113 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Bridges Academy
|
-81 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-92
|
-111
|
-107
|
-87
|
-81
|
-478.0 |
-95.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -59.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -131.6
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:
