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 |
93571 |
2376 |
- |
2436 |
= |
-60 |
* |
(55 |
/ |
165)
|
= |
-19.99999998 |
| 4 |
93574 |
2438 |
- |
2485 |
= |
-47 |
* |
(59 |
/ |
165)
|
= |
-16.80606058 |
| 5 |
93575 |
2486 |
- |
2528 |
= |
-42 |
* |
(51 |
/ |
165)
|
= |
-12.98181818 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Piedmont Avenue Elementary
|
-50 |
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 |
2637 |
2369 |
- |
2436 |
= |
-67 |
* |
(56 |
/ |
170)
|
= |
-22.07058819 |
| 4 |
2640 |
2414 |
- |
2485 |
= |
-71 |
* |
(59 |
/ |
170)
|
= |
-24.64117643 |
| 5 |
2642 |
2480 |
- |
2528 |
= |
-48 |
* |
(55 |
/ |
170)
|
= |
-15.52941173 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Piedmont Avenue Elementary
|
-62 |
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 |
2711 |
2382 |
- |
2436 |
= |
-54 |
* |
(48 |
/ |
151)
|
= |
-17.16556288 |
| 4 |
2713 |
2413 |
- |
2485 |
= |
-72 |
* |
(53 |
/ |
151)
|
= |
-25.27152314 |
| 5 |
2716 |
2430 |
- |
2528 |
= |
-98 |
* |
(50 |
/ |
151)
|
= |
-32.45033105 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Piedmont Avenue Elementary
|
-75 |
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 |
2715 |
2381 |
- |
2436 |
= |
-55 |
* |
(52 |
/ |
143)
|
= |
-19.99999997 |
| 4 |
2717 |
2433 |
- |
2485 |
= |
-52 |
* |
(39 |
/ |
143)
|
= |
-14.18181814 |
| 5 |
2719 |
2429 |
- |
2528 |
= |
-99 |
* |
(52 |
/ |
143)
|
= |
-35.99999994 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Piedmont Avenue Elementary
|
-70 |
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 |
2737 |
2388 |
- |
2436 |
= |
-48 |
* |
(43 |
/ |
129)
|
= |
-15.99999998 |
| 4 |
2738 |
2406 |
- |
2485 |
= |
-79 |
* |
(50 |
/ |
129)
|
= |
-30.62015502 |
| 5 |
2739 |
2433 |
- |
2528 |
= |
-95 |
* |
(36 |
/ |
129)
|
= |
-26.51162787 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Piedmont Avenue Elementary
|
-73 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-50
|
-62
|
-75
|
-70
|
-73
|
-330.0 |
-66.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -36.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -96.0
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:
