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 |
975826 |
2411 |
- |
2436 |
= |
-25 |
* |
(48 |
/ |
162)
|
= |
-7.4074074 |
4 |
975829 |
2408 |
- |
2485 |
= |
-77 |
* |
(56 |
/ |
162)
|
= |
-26.61728392 |
5 |
975830 |
2468 |
- |
2528 |
= |
-60 |
* |
(58 |
/ |
162)
|
= |
-21.48148146 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Westport Heights Elementary
|
-56 |
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 |
30883 |
2414 |
- |
2436 |
= |
-22 |
* |
(48 |
/ |
145)
|
= |
-7.2827586 |
4 |
30885 |
2470 |
- |
2485 |
= |
-15 |
* |
(45 |
/ |
145)
|
= |
-4.65517241 |
5 |
30887 |
2447 |
- |
2528 |
= |
-81 |
* |
(52 |
/ |
145)
|
= |
-29.04827581 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Westport Heights Elementary
|
-41 |
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 |
31448 |
2410 |
- |
2436 |
= |
-26 |
* |
(58 |
/ |
151)
|
= |
-9.98675496 |
4 |
31449 |
2451 |
- |
2485 |
= |
-34 |
* |
(49 |
/ |
151)
|
= |
-11.03311257 |
5 |
31452 |
2484 |
- |
2528 |
= |
-44 |
* |
(44 |
/ |
151)
|
= |
-12.82119203 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Westport Heights Elementary
|
-34 |
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 |
31495 |
2412 |
- |
2436 |
= |
-24 |
* |
(36 |
/ |
139)
|
= |
-6.21582732 |
4 |
31497 |
2435 |
- |
2485 |
= |
-50 |
* |
(54 |
/ |
139)
|
= |
-19.4244604 |
5 |
31499 |
2460 |
- |
2528 |
= |
-68 |
* |
(49 |
/ |
139)
|
= |
-23.97122298 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Westport Heights Elementary
|
-50 |
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 |
31672 |
2449 |
- |
2436 |
= |
13 |
* |
(34 |
/ |
120)
|
= |
3.68333333 |
4 |
31673 |
2453 |
- |
2485 |
= |
-32 |
* |
(31 |
/ |
120)
|
= |
-8.26666666 |
5 |
31674 |
2474 |
- |
2528 |
= |
-54 |
* |
(55 |
/ |
120)
|
= |
-24.74999998 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Westport Heights Elementary
|
-29 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-56
|
-41
|
-34
|
-50
|
-29
|
-210.0 |
-42.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -9.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -75.0
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: