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 |
911937 |
2391 |
- |
2436 |
= |
-45 |
* |
(121 |
/ |
370)
|
= |
-14.71621622 |
| 4 |
911938 |
2410 |
- |
2485 |
= |
-75 |
* |
(123 |
/ |
370)
|
= |
-24.9324324 |
| 5 |
911941 |
2425 |
- |
2528 |
= |
-103 |
* |
(126 |
/ |
370)
|
= |
-35.07567562 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Haddon Avenue Elementary
|
-75 |
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 |
28825 |
2399 |
- |
2436 |
= |
-37 |
* |
(109 |
/ |
365)
|
= |
-11.04931503 |
| 4 |
28827 |
2424 |
- |
2485 |
= |
-61 |
* |
(134 |
/ |
365)
|
= |
-22.39452051 |
| 5 |
28828 |
2424 |
- |
2528 |
= |
-104 |
* |
(122 |
/ |
365)
|
= |
-34.7616438 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Haddon Avenue Elementary
|
-68 |
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 |
29390 |
2410 |
- |
2436 |
= |
-26 |
* |
(105 |
/ |
345)
|
= |
-7.91304348 |
| 4 |
29391 |
2425 |
- |
2485 |
= |
-60 |
* |
(109 |
/ |
345)
|
= |
-18.95652168 |
| 5 |
29394 |
2426 |
- |
2528 |
= |
-102 |
* |
(131 |
/ |
345)
|
= |
-38.73043469 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Haddon Avenue Elementary
|
-66 |
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 |
29438 |
2385 |
- |
2436 |
= |
-51 |
* |
(137 |
/ |
334)
|
= |
-20.91916164 |
| 4 |
29441 |
2430 |
- |
2485 |
= |
-55 |
* |
(96 |
/ |
334)
|
= |
-15.8083832 |
| 5 |
29442 |
2445 |
- |
2528 |
= |
-83 |
* |
(101 |
/ |
334)
|
= |
-25.09880235 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Haddon Avenue Elementary
|
-62 |
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 |
29614 |
2400 |
- |
2436 |
= |
-36 |
* |
(117 |
/ |
339)
|
= |
-12.42477875 |
| 4 |
29615 |
2414 |
- |
2485 |
= |
-71 |
* |
(132 |
/ |
339)
|
= |
-27.64601763 |
| 5 |
29616 |
2459 |
- |
2528 |
= |
-69 |
* |
(90 |
/ |
339)
|
= |
-18.31858403 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Haddon Avenue Elementary
|
-58 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-75
|
-68
|
-66
|
-62
|
-58
|
-329.0 |
-65.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -83.8
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:
