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 |
793911 |
2431 |
- |
2436 |
= |
-5 |
* |
(108 |
/ |
267)
|
= |
-2.02247191 |
| 4 |
793914 |
2415 |
- |
2485 |
= |
-70 |
* |
(91 |
/ |
267)
|
= |
-23.8576779 |
| 5 |
793915 |
2403 |
- |
2528 |
= |
-125 |
* |
(68 |
/ |
267)
|
= |
-31.83520588 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Bellingham Elementary
|
-58 |
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 |
24810 |
2416 |
- |
2436 |
= |
-20 |
* |
(102 |
/ |
308)
|
= |
-6.62337662 |
| 4 |
24812 |
2437 |
- |
2485 |
= |
-48 |
* |
(110 |
/ |
308)
|
= |
-17.14285714 |
| 5 |
24814 |
2455 |
- |
2528 |
= |
-73 |
* |
(96 |
/ |
308)
|
= |
-22.7532467 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Bellingham Elementary
|
-47 |
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 |
25307 |
2429 |
- |
2436 |
= |
-7 |
* |
(106 |
/ |
301)
|
= |
-2.46511628 |
| 4 |
25309 |
2437 |
- |
2485 |
= |
-48 |
* |
(89 |
/ |
301)
|
= |
-14.19269102 |
| 5 |
25311 |
2436 |
- |
2528 |
= |
-92 |
* |
(106 |
/ |
301)
|
= |
-32.39867106 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Bellingham Elementary
|
-49 |
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 |
25335 |
2419 |
- |
2436 |
= |
-17 |
* |
(81 |
/ |
258)
|
= |
-5.3372093 |
| 4 |
25336 |
2432 |
- |
2485 |
= |
-53 |
* |
(94 |
/ |
258)
|
= |
-19.31007751 |
| 5 |
25339 |
2454 |
- |
2528 |
= |
-74 |
* |
(83 |
/ |
258)
|
= |
-23.80620152 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Bellingham Elementary
|
-48 |
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 |
25496 |
2434 |
- |
2436 |
= |
-2 |
* |
(79 |
/ |
247)
|
= |
-0.63967611 |
| 4 |
25497 |
2417 |
- |
2485 |
= |
-68 |
* |
(76 |
/ |
247)
|
= |
-20.92307688 |
| 5 |
25498 |
2462 |
- |
2528 |
= |
-66 |
* |
(92 |
/ |
247)
|
= |
-24.58299591 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Bellingham Elementary
|
-46 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-58
|
-47
|
-49
|
-48
|
-46
|
-248.0 |
-49.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -37.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -61.6
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:
