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 |
976986 |
2402 |
- |
2436 |
= |
-34 |
* |
(144 |
/ |
412)
|
= |
-11.88349514 |
| 4 |
976989 |
2423 |
- |
2485 |
= |
-62 |
* |
(125 |
/ |
412)
|
= |
-18.8106796 |
| 5 |
976990 |
2479 |
- |
2528 |
= |
-49 |
* |
(143 |
/ |
412)
|
= |
-17.00728152 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Wilmington Park Elementary
|
-48 |
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 |
30917 |
2406 |
- |
2436 |
= |
-30 |
* |
(119 |
/ |
383)
|
= |
-9.3211488 |
| 4 |
30918 |
2441 |
- |
2485 |
= |
-44 |
* |
(141 |
/ |
383)
|
= |
-16.19843342 |
| 5 |
30921 |
2462 |
- |
2528 |
= |
-66 |
* |
(123 |
/ |
383)
|
= |
-21.19582245 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Wilmington Park Elementary
|
-47 |
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 |
31480 |
2401 |
- |
2436 |
= |
-35 |
* |
(117 |
/ |
375)
|
= |
-10.92 |
| 4 |
31482 |
2431 |
- |
2485 |
= |
-54 |
* |
(118 |
/ |
375)
|
= |
-16.99199996 |
| 5 |
31483 |
2467 |
- |
2528 |
= |
-61 |
* |
(140 |
/ |
375)
|
= |
-22.77333331 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Wilmington Park Elementary
|
-51 |
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 |
31527 |
2391 |
- |
2436 |
= |
-45 |
* |
(131 |
/ |
364)
|
= |
-16.19505491 |
| 4 |
31528 |
2427 |
- |
2485 |
= |
-58 |
* |
(116 |
/ |
364)
|
= |
-18.48351644 |
| 5 |
31531 |
2466 |
- |
2528 |
= |
-62 |
* |
(117 |
/ |
364)
|
= |
-19.9285714 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Wilmington Park Elementary
|
-55 |
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 |
31704 |
2403 |
- |
2436 |
= |
-33 |
* |
(120 |
/ |
345)
|
= |
-11.47826084 |
| 4 |
31705 |
2437 |
- |
2485 |
= |
-48 |
* |
(112 |
/ |
345)
|
= |
-15.58260869 |
| 5 |
31706 |
2470 |
- |
2528 |
= |
-58 |
* |
(113 |
/ |
345)
|
= |
-18.9971014 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Wilmington Park Elementary
|
-46 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-48
|
-47
|
-51
|
-55
|
-46
|
-247.0 |
-49.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -40.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -58.4
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:
