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 |
334147 |
2376 |
- |
2436 |
= |
-60 |
* |
(92 |
/ |
392)
|
= |
-14.08163262 |
| 4 |
334148 |
2385 |
- |
2485 |
= |
-100 |
* |
(111 |
/ |
392)
|
= |
-28.3163265 |
| 5 |
334151 |
2429 |
- |
2528 |
= |
-99 |
* |
(90 |
/ |
392)
|
= |
-22.72959176 |
| 6 |
334152 |
2447 |
- |
2552 |
= |
-105 |
* |
(99 |
/ |
392)
|
= |
-26.5178571 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Winchell Elementary
|
-92 |
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 |
9969 |
2395 |
- |
2436 |
= |
-41 |
* |
(96 |
/ |
392)
|
= |
-10.04081632 |
| 4 |
9971 |
2405 |
- |
2485 |
= |
-80 |
* |
(98 |
/ |
392)
|
= |
-20.0 |
| 5 |
9973 |
2435 |
- |
2528 |
= |
-93 |
* |
(113 |
/ |
392)
|
= |
-26.80867346 |
| 6 |
9975 |
2474 |
- |
2552 |
= |
-78 |
* |
(85 |
/ |
392)
|
= |
-16.91326525 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Winchell Elementary
|
-74 |
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 |
10297 |
2408 |
- |
2436 |
= |
-28 |
* |
(105 |
/ |
417)
|
= |
-7.05035971 |
| 4 |
10299 |
2416 |
- |
2485 |
= |
-69 |
* |
(106 |
/ |
417)
|
= |
-17.5395683 |
| 5 |
10301 |
2460 |
- |
2528 |
= |
-68 |
* |
(93 |
/ |
417)
|
= |
-15.16546758 |
| 6 |
10303 |
2458 |
- |
2552 |
= |
-94 |
* |
(113 |
/ |
417)
|
= |
-25.47242202 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Winchell Elementary
|
-65 |
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 |
10315 |
2432 |
- |
2436 |
= |
-4 |
* |
(93 |
/ |
398)
|
= |
-0.93467336 |
| 4 |
10318 |
2445 |
- |
2485 |
= |
-40 |
* |
(102 |
/ |
398)
|
= |
-10.25125628 |
| 5 |
10319 |
2504 |
- |
2528 |
= |
-24 |
* |
(103 |
/ |
398)
|
= |
-6.21105526 |
| 6 |
10322 |
2499 |
- |
2552 |
= |
-53 |
* |
(100 |
/ |
398)
|
= |
-13.31658289 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Winchell Elementary
|
-31 |
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 |
10396 |
2418 |
- |
2436 |
= |
-18 |
* |
(101 |
/ |
405)
|
= |
-4.48888889 |
| 4 |
10397 |
2460 |
- |
2485 |
= |
-25 |
* |
(96 |
/ |
405)
|
= |
-5.92592593 |
| 5 |
10398 |
2512 |
- |
2528 |
= |
-16 |
* |
(103 |
/ |
405)
|
= |
-4.06913579 |
| 6 |
10399 |
2506 |
- |
2552 |
= |
-46 |
* |
(105 |
/ |
405)
|
= |
-11.92592591 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Winchell Elementary
|
-26 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-92
|
-74
|
-65
|
-31
|
-26
|
-288.0 |
-57.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 26.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -141.6
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:
