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 |
979297 |
2374 |
- |
2436 |
= |
-62 |
* |
(139 |
/ |
380)
|
= |
-22.67894733 |
| 4 |
979298 |
2413 |
- |
2485 |
= |
-72 |
* |
(107 |
/ |
380)
|
= |
-20.27368418 |
| 5 |
979301 |
2441 |
- |
2528 |
= |
-87 |
* |
(134 |
/ |
380)
|
= |
-30.67894729 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Woodlawn Avenue Elementary
|
-74 |
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 |
30988 |
2383 |
- |
2436 |
= |
-53 |
* |
(125 |
/ |
374)
|
= |
-17.71390369 |
| 4 |
30991 |
2420 |
- |
2485 |
= |
-65 |
* |
(133 |
/ |
374)
|
= |
-23.11497325 |
| 5 |
30993 |
2433 |
- |
2528 |
= |
-95 |
* |
(116 |
/ |
374)
|
= |
-29.46524057 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Woodlawn Avenue Elementary
|
-70 |
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 |
31551 |
2403 |
- |
2436 |
= |
-33 |
* |
(120 |
/ |
363)
|
= |
-10.9090909 |
| 4 |
31554 |
2426 |
- |
2485 |
= |
-59 |
* |
(121 |
/ |
363)
|
= |
-19.66666665 |
| 5 |
31556 |
2469 |
- |
2528 |
= |
-59 |
* |
(122 |
/ |
363)
|
= |
-19.82920109 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Woodlawn Avenue Elementary
|
-50 |
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 |
31599 |
2419 |
- |
2436 |
= |
-17 |
* |
(113 |
/ |
345)
|
= |
-5.56811593 |
| 4 |
31600 |
2444 |
- |
2485 |
= |
-41 |
* |
(106 |
/ |
345)
|
= |
-12.59710142 |
| 5 |
31603 |
2456 |
- |
2528 |
= |
-72 |
* |
(126 |
/ |
345)
|
= |
-26.29565215 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Woodlawn Avenue Elementary
|
-44 |
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 |
31776 |
2431 |
- |
2436 |
= |
-5 |
* |
(104 |
/ |
321)
|
= |
-1.61993769 |
| 4 |
31777 |
2457 |
- |
2485 |
= |
-28 |
* |
(108 |
/ |
321)
|
= |
-9.42056074 |
| 5 |
31778 |
2442 |
- |
2528 |
= |
-86 |
* |
(109 |
/ |
321)
|
= |
-29.20249213 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Woodlawn Avenue Elementary
|
-40 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-74
|
-70
|
-50
|
-44
|
-40
|
-278.0 |
-55.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -10.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.6
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:
