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 |
912137 |
2395 |
- |
2436 |
= |
-41 |
* |
(82 |
/ |
270)
|
= |
-12.45185182 |
| 4 |
912138 |
2448 |
- |
2485 |
= |
-37 |
* |
(101 |
/ |
270)
|
= |
-13.84074074 |
| 5 |
912141 |
2461 |
- |
2528 |
= |
-67 |
* |
(87 |
/ |
270)
|
= |
-21.58888887 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Halldale 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 |
28833 |
2441 |
- |
2436 |
= |
5 |
* |
(82 |
/ |
263)
|
= |
1.55893536 |
| 4 |
28835 |
2481 |
- |
2485 |
= |
-4 |
* |
(87 |
/ |
263)
|
= |
-1.32319392 |
| 5 |
28836 |
2484 |
- |
2528 |
= |
-44 |
* |
(94 |
/ |
263)
|
= |
-15.72623571 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Halldale Elementary
|
-15 |
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 |
29398 |
2411 |
- |
2436 |
= |
-25 |
* |
(70 |
/ |
239)
|
= |
-7.32217573 |
| 4 |
29400 |
2489 |
- |
2485 |
= |
4 |
* |
(81 |
/ |
239)
|
= |
1.35564853 |
| 5 |
29401 |
2525 |
- |
2528 |
= |
-3 |
* |
(88 |
/ |
239)
|
= |
-1.10460251 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Halldale Elementary
|
-7 |
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 |
29446 |
2440 |
- |
2436 |
= |
4 |
* |
(74 |
/ |
218)
|
= |
1.35779816 |
| 4 |
29448 |
2463 |
- |
2485 |
= |
-22 |
* |
(67 |
/ |
218)
|
= |
-6.76146788 |
| 5 |
29450 |
2531 |
- |
2528 |
= |
3 |
* |
(77 |
/ |
218)
|
= |
1.05963303 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Halldale Elementary
|
-4 |
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 |
29622 |
2460 |
- |
2436 |
= |
24 |
* |
(66 |
/ |
214)
|
= |
7.40186914 |
| 4 |
29623 |
2479 |
- |
2485 |
= |
-6 |
* |
(75 |
/ |
214)
|
= |
-2.10280373 |
| 5 |
29624 |
2509 |
- |
2528 |
= |
-19 |
* |
(73 |
/ |
214)
|
= |
-6.48130841 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Halldale Elementary
|
-1 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-48
|
-15
|
-7
|
-4
|
-1
|
-75.0 |
-15.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 42.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -72.0
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:
