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 |
1007845 |
2388 |
- |
2436 |
= |
-48 |
* |
(101 |
/ |
343)
|
= |
-14.13411077 |
4 |
1007846 |
2433 |
- |
2485 |
= |
-52 |
* |
(126 |
/ |
343)
|
= |
-19.10204078 |
5 |
1007849 |
2450 |
- |
2528 |
= |
-78 |
* |
(116 |
/ |
343)
|
= |
-26.37900868 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for San Antonio Elementary
|
-60 |
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 |
31806 |
2382 |
- |
2436 |
= |
-54 |
* |
(110 |
/ |
333)
|
= |
-17.83783782 |
4 |
31809 |
2442 |
- |
2485 |
= |
-43 |
* |
(101 |
/ |
333)
|
= |
-13.04204203 |
5 |
31811 |
2455 |
- |
2528 |
= |
-73 |
* |
(122 |
/ |
333)
|
= |
-26.74474472 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for San Antonio Elementary
|
-58 |
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 |
32359 |
2397 |
- |
2436 |
= |
-39 |
* |
(107 |
/ |
317)
|
= |
-13.16403785 |
4 |
32362 |
2449 |
- |
2485 |
= |
-36 |
* |
(111 |
/ |
317)
|
= |
-12.60567821 |
5 |
32364 |
2468 |
- |
2528 |
= |
-60 |
* |
(99 |
/ |
317)
|
= |
-18.73817034 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for San Antonio Elementary
|
-45 |
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 |
32386 |
2390 |
- |
2436 |
= |
-46 |
* |
(94 |
/ |
299)
|
= |
-14.46153842 |
4 |
32388 |
2452 |
- |
2485 |
= |
-33 |
* |
(100 |
/ |
299)
|
= |
-11.03678928 |
5 |
32390 |
2486 |
- |
2528 |
= |
-42 |
* |
(105 |
/ |
299)
|
= |
-14.74916386 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for San Antonio Elementary
|
-40 |
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 |
32568 |
2413 |
- |
2436 |
= |
-23 |
* |
(79 |
/ |
261)
|
= |
-6.96168582 |
4 |
32569 |
2458 |
- |
2485 |
= |
-27 |
* |
(91 |
/ |
261)
|
= |
-9.41379308 |
5 |
32570 |
2488 |
- |
2528 |
= |
-40 |
* |
(91 |
/ |
261)
|
= |
-13.94636012 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for San Antonio Elementary
|
-30 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-60
|
-58
|
-45
|
-40
|
-30
|
-233.0 |
-46.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -10.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -82.6
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: