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 |
1881789 |
2383 |
- |
2436 |
= |
-53 |
* |
(67 |
/ |
258)
|
= |
-13.76356587 |
4 |
1881792 |
2407 |
- |
2485 |
= |
-78 |
* |
(61 |
/ |
258)
|
= |
-18.44186042 |
5 |
1881793 |
2442 |
- |
2528 |
= |
-86 |
* |
(59 |
/ |
258)
|
= |
-19.66666662 |
6 |
1881796 |
2464 |
- |
2552 |
= |
-88 |
* |
(71 |
/ |
258)
|
= |
-24.21705422 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Northridge Elementary
|
-76 |
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 |
58049 |
2385 |
- |
2436 |
= |
-51 |
* |
(62 |
/ |
255)
|
= |
-12.39999995 |
4 |
58051 |
2423 |
- |
2485 |
= |
-62 |
* |
(64 |
/ |
255)
|
= |
-15.5607843 |
5 |
58053 |
2430 |
- |
2528 |
= |
-98 |
* |
(71 |
/ |
255)
|
= |
-27.28627446 |
6 |
58055 |
2480 |
- |
2552 |
= |
-72 |
* |
(58 |
/ |
255)
|
= |
-16.37647056 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Northridge Elementary
|
-72 |
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 |
59744 |
2403 |
- |
2436 |
= |
-33 |
* |
(68 |
/ |
275)
|
= |
-8.15999999 |
4 |
59746 |
2397 |
- |
2485 |
= |
-88 |
* |
(65 |
/ |
275)
|
= |
-20.79999997 |
5 |
59747 |
2404 |
- |
2528 |
= |
-124 |
* |
(75 |
/ |
275)
|
= |
-33.81818173 |
6 |
59749 |
2467 |
- |
2552 |
= |
-85 |
* |
(67 |
/ |
275)
|
= |
-20.70909086 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Northridge Elementary
|
-83 |
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 |
59861 |
2389 |
- |
2436 |
= |
-47 |
* |
(54 |
/ |
235)
|
= |
-10.8 |
4 |
59863 |
2476 |
- |
2485 |
= |
-9 |
* |
(55 |
/ |
235)
|
= |
-2.10638298 |
5 |
59865 |
2420 |
- |
2528 |
= |
-108 |
* |
(63 |
/ |
235)
|
= |
-28.95319145 |
6 |
59867 |
2470 |
- |
2552 |
= |
-82 |
* |
(63 |
/ |
235)
|
= |
-21.98297869 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Northridge Elementary
|
-64 |
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 |
60116 |
2362 |
- |
2436 |
= |
-74 |
* |
(46 |
/ |
231)
|
= |
-14.73593073 |
4 |
60117 |
2450 |
- |
2485 |
= |
-35 |
* |
(53 |
/ |
231)
|
= |
-8.03030302 |
5 |
60118 |
2453 |
- |
2528 |
= |
-75 |
* |
(71 |
/ |
231)
|
= |
-23.05194803 |
6 |
60119 |
2465 |
- |
2552 |
= |
-87 |
* |
(61 |
/ |
231)
|
= |
-22.97402597 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Northridge Elementary
|
-69 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-76
|
-72
|
-83
|
-64
|
-69
|
-364.0 |
-72.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -51.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.8
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: