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 |
209530 |
2415 |
- |
2436 |
= |
-21 |
* |
(102 |
/ |
327)
|
= |
-6.55045871 |
| 4 |
209531 |
2475 |
- |
2485 |
= |
-10 |
* |
(119 |
/ |
327)
|
= |
-3.63914373 |
| 5 |
209534 |
2508 |
- |
2528 |
= |
-20 |
* |
(106 |
/ |
327)
|
= |
-6.48318042 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Highlands Elementary
|
-17 |
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 |
6214 |
2441 |
- |
2436 |
= |
5 |
* |
(103 |
/ |
328)
|
= |
1.57012195 |
| 4 |
6215 |
2458 |
- |
2485 |
= |
-27 |
* |
(104 |
/ |
328)
|
= |
-8.56097559 |
| 5 |
6218 |
2492 |
- |
2528 |
= |
-36 |
* |
(121 |
/ |
328)
|
= |
-13.2804878 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Highlands Elementary
|
-20 |
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 |
6390 |
2428 |
- |
2436 |
= |
-8 |
* |
(83 |
/ |
297)
|
= |
-2.23569023 |
| 4 |
6392 |
2487 |
- |
2485 |
= |
2 |
* |
(101 |
/ |
297)
|
= |
0.68013468 |
| 5 |
6394 |
2472 |
- |
2528 |
= |
-56 |
* |
(113 |
/ |
297)
|
= |
-21.30639728 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Highlands Elementary
|
-23 |
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 |
6386 |
2441 |
- |
2436 |
= |
5 |
* |
(85 |
/ |
272)
|
= |
1.5625 |
| 4 |
6387 |
2470 |
- |
2485 |
= |
-15 |
* |
(84 |
/ |
272)
|
= |
-4.63235294 |
| 5 |
6390 |
2497 |
- |
2528 |
= |
-31 |
* |
(103 |
/ |
272)
|
= |
-11.73897057 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Highlands Elementary
|
-15 |
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 |
6445 |
2454 |
- |
2436 |
= |
18 |
* |
(91 |
/ |
249)
|
= |
6.57831325 |
| 4 |
6446 |
2506 |
- |
2485 |
= |
21 |
* |
(79 |
/ |
249)
|
= |
6.6626506 |
| 5 |
6447 |
2499 |
- |
2528 |
= |
-29 |
* |
(79 |
/ |
249)
|
= |
-9.2008032 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Highlands Elementary
|
4 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-17
|
-20
|
-23
|
-15
|
4
|
-71.0 |
-14.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 15.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -44.2
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:
