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 |
923267 |
2379 |
- |
2436 |
= |
-57 |
* |
(133 |
/ |
378)
|
= |
-20.05555551 |
| 4 |
923270 |
2431 |
- |
2485 |
= |
-54 |
* |
(135 |
/ |
378)
|
= |
-19.28571428 |
| 5 |
923271 |
2459 |
- |
2528 |
= |
-69 |
* |
(110 |
/ |
378)
|
= |
-20.07936508 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Liggett Street Elementary
|
-59 |
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 |
29187 |
2387 |
- |
2436 |
= |
-49 |
* |
(121 |
/ |
367)
|
= |
-16.15531333 |
| 4 |
29189 |
2434 |
- |
2485 |
= |
-51 |
* |
(126 |
/ |
367)
|
= |
-17.50953675 |
| 5 |
29190 |
2458 |
- |
2528 |
= |
-70 |
* |
(120 |
/ |
367)
|
= |
-22.88828332 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Liggett Street Elementary
|
-57 |
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 |
29752 |
2386 |
- |
2436 |
= |
-50 |
* |
(134 |
/ |
362)
|
= |
-18.50828725 |
| 4 |
29753 |
2428 |
- |
2485 |
= |
-57 |
* |
(118 |
/ |
362)
|
= |
-18.58011045 |
| 5 |
29755 |
2453 |
- |
2528 |
= |
-75 |
* |
(110 |
/ |
362)
|
= |
-22.79005523 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Liggett Street Elementary
|
-60 |
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 |
29801 |
2398 |
- |
2436 |
= |
-38 |
* |
(101 |
/ |
337)
|
= |
-11.38872403 |
| 4 |
29803 |
2435 |
- |
2485 |
= |
-50 |
* |
(128 |
/ |
337)
|
= |
-18.9910979 |
| 5 |
29805 |
2458 |
- |
2528 |
= |
-70 |
* |
(108 |
/ |
337)
|
= |
-22.43323439 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Liggett Street Elementary
|
-53 |
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 |
29976 |
2394 |
- |
2436 |
= |
-42 |
* |
(123 |
/ |
351)
|
= |
-14.7179487 |
| 4 |
29977 |
2464 |
- |
2485 |
= |
-21 |
* |
(102 |
/ |
351)
|
= |
-6.10256409 |
| 5 |
29978 |
2453 |
- |
2528 |
= |
-75 |
* |
(126 |
/ |
351)
|
= |
-26.92307685 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Liggett Street Elementary
|
-48 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-59
|
-57
|
-60
|
-53
|
-48
|
-277.0 |
-55.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -43.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -67.4
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:
