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 |
869669 |
2411 |
- |
2436 |
= |
-25 |
* |
(79 |
/ |
236)
|
= |
-8.36864405 |
4 |
869672 |
2416 |
- |
2485 |
= |
-69 |
* |
(81 |
/ |
236)
|
= |
-23.68220332 |
5 |
869673 |
2450 |
- |
2528 |
= |
-78 |
* |
(76 |
/ |
236)
|
= |
-25.11864404 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Ambler Avenue Elementary
|
-57 |
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 |
27508 |
2439 |
- |
2436 |
= |
3 |
* |
(88 |
/ |
258)
|
= |
1.02325581 |
4 |
27510 |
2442 |
- |
2485 |
= |
-43 |
* |
(87 |
/ |
258)
|
= |
-14.49999999 |
5 |
27512 |
2452 |
- |
2528 |
= |
-76 |
* |
(83 |
/ |
258)
|
= |
-24.44961238 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Ambler Avenue Elementary
|
-38 |
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 |
28081 |
2400 |
- |
2436 |
= |
-36 |
* |
(84 |
/ |
276)
|
= |
-10.95652174 |
4 |
28083 |
2457 |
- |
2485 |
= |
-28 |
* |
(89 |
/ |
276)
|
= |
-9.0289855 |
5 |
28086 |
2446 |
- |
2528 |
= |
-82 |
* |
(103 |
/ |
276)
|
= |
-30.60144921 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Ambler Avenue Elementary
|
-51 |
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 |
28132 |
2423 |
- |
2436 |
= |
-13 |
* |
(83 |
/ |
264)
|
= |
-4.08712121 |
4 |
28134 |
2453 |
- |
2485 |
= |
-32 |
* |
(88 |
/ |
264)
|
= |
-10.66666666 |
5 |
28136 |
2469 |
- |
2528 |
= |
-59 |
* |
(93 |
/ |
264)
|
= |
-20.78409089 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Ambler Avenue Elementary
|
-36 |
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 |
28312 |
2431 |
- |
2436 |
= |
-5 |
* |
(96 |
/ |
266)
|
= |
-1.80451128 |
4 |
28313 |
2447 |
- |
2485 |
= |
-38 |
* |
(84 |
/ |
266)
|
= |
-11.99999997 |
5 |
28314 |
2501 |
- |
2528 |
= |
-27 |
* |
(86 |
/ |
266)
|
= |
-8.72932329 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Ambler Avenue Elementary
|
-23 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-57
|
-38
|
-51
|
-36
|
-23
|
-205.0 |
-41.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -2.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -80.0
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: