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 |
477478 |
2387 |
- |
2436 |
= |
-49 |
* |
(55 |
/ |
139)
|
= |
-19.3884892 |
4 |
477479 |
2431 |
- |
2485 |
= |
-54 |
* |
(49 |
/ |
139)
|
= |
-19.03597119 |
5 |
477482 |
2462 |
- |
2528 |
= |
-66 |
* |
(35 |
/ |
139)
|
= |
-16.61870503 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for William Penn Elementary
|
-55 |
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 |
15145 |
2420 |
- |
2436 |
= |
-16 |
* |
(48 |
/ |
152)
|
= |
-5.05263157 |
4 |
15148 |
2425 |
- |
2485 |
= |
-60 |
* |
(50 |
/ |
152)
|
= |
-19.73684208 |
5 |
15149 |
2473 |
- |
2528 |
= |
-55 |
* |
(54 |
/ |
152)
|
= |
-19.53947364 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for William Penn Elementary
|
-44 |
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 |
15462 |
2438 |
- |
2436 |
= |
2 |
* |
(48 |
/ |
159)
|
= |
0.60377358 |
4 |
15464 |
2426 |
- |
2485 |
= |
-59 |
* |
(50 |
/ |
159)
|
= |
-18.55345907 |
5 |
15466 |
2454 |
- |
2528 |
= |
-74 |
* |
(61 |
/ |
159)
|
= |
-28.38993705 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for William Penn Elementary
|
-46 |
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 |
15484 |
2431 |
- |
2436 |
= |
-5 |
* |
(44 |
/ |
143)
|
= |
-1.53846154 |
4 |
15485 |
2443 |
- |
2485 |
= |
-42 |
* |
(49 |
/ |
143)
|
= |
-14.39160836 |
5 |
15488 |
2436 |
- |
2528 |
= |
-92 |
* |
(50 |
/ |
143)
|
= |
-32.16783211 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for William Penn Elementary
|
-48 |
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 |
15597 |
2419 |
- |
2436 |
= |
-17 |
* |
(46 |
/ |
137)
|
= |
-5.70802919 |
4 |
15598 |
2456 |
- |
2485 |
= |
-29 |
* |
(47 |
/ |
137)
|
= |
-9.9489051 |
5 |
15599 |
2455 |
- |
2528 |
= |
-73 |
* |
(44 |
/ |
137)
|
= |
-23.44525546 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for William Penn Elementary
|
-39 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-55
|
-44
|
-46
|
-48
|
-39
|
-232.0 |
-46.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -31.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -61.4
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: