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 |
964545 |
2338 |
- |
2436 |
= |
-98 |
* |
(112 |
/ |
336)
|
= |
-32.66666663 |
4 |
964548 |
2395 |
- |
2485 |
= |
-90 |
* |
(107 |
/ |
336)
|
= |
-28.6607142 |
5 |
964549 |
2407 |
- |
2528 |
= |
-121 |
* |
(117 |
/ |
336)
|
= |
-42.13392849 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Lenicia B. Weemes Elementary
|
-103 |
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 |
30518 |
2368 |
- |
2436 |
= |
-68 |
* |
(125 |
/ |
325)
|
= |
-26.15384611 |
4 |
30520 |
2411 |
- |
2485 |
= |
-74 |
* |
(96 |
/ |
325)
|
= |
-21.85846151 |
5 |
30523 |
2407 |
- |
2528 |
= |
-121 |
* |
(104 |
/ |
325)
|
= |
-38.72 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Lenicia B. Weemes Elementary
|
-87 |
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 |
31083 |
2363 |
- |
2436 |
= |
-73 |
* |
(103 |
/ |
318)
|
= |
-23.64465408 |
4 |
31086 |
2414 |
- |
2485 |
= |
-71 |
* |
(121 |
/ |
318)
|
= |
-27.01572322 |
5 |
31087 |
2403 |
- |
2528 |
= |
-125 |
* |
(94 |
/ |
318)
|
= |
-36.9496855 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Lenicia B. Weemes Elementary
|
-88 |
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 |
31131 |
2381 |
- |
2436 |
= |
-55 |
* |
(84 |
/ |
268)
|
= |
-17.23880593 |
4 |
31133 |
2395 |
- |
2485 |
= |
-90 |
* |
(82 |
/ |
268)
|
= |
-27.53731341 |
5 |
31135 |
2449 |
- |
2528 |
= |
-79 |
* |
(102 |
/ |
268)
|
= |
-30.06716411 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Lenicia B. Weemes Elementary
|
-75 |
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 |
31306 |
2392 |
- |
2436 |
= |
-44 |
* |
(79 |
/ |
230)
|
= |
-15.11304344 |
4 |
31307 |
2414 |
- |
2485 |
= |
-71 |
* |
(76 |
/ |
230)
|
= |
-23.46086952 |
5 |
31308 |
2418 |
- |
2528 |
= |
-110 |
* |
(75 |
/ |
230)
|
= |
-35.86956516 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Lenicia B. Weemes Elementary
|
-74 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-103
|
-87
|
-88
|
-75
|
-74
|
-427.0 |
-85.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -52.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -118.4
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: