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 |
2241642 |
2450 |
- |
2436 |
= |
14 |
* |
(90 |
/ |
275)
|
= |
4.58181818 |
| 4 |
2241645 |
2476 |
- |
2485 |
= |
-9 |
* |
(97 |
/ |
275)
|
= |
-3.17454545 |
| 5 |
2241646 |
2527 |
- |
2528 |
= |
-1 |
* |
(88 |
/ |
275)
|
= |
-0.32 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Birney Elementary
|
1 |
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 |
68810 |
2474 |
- |
2436 |
= |
38 |
* |
(84 |
/ |
250)
|
= |
12.768 |
| 4 |
68811 |
2510 |
- |
2485 |
= |
25 |
* |
(75 |
/ |
250)
|
= |
7.5 |
| 5 |
68814 |
2524 |
- |
2528 |
= |
-4 |
* |
(91 |
/ |
250)
|
= |
-1.456 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Birney Elementary
|
19 |
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 |
70643 |
2473 |
- |
2436 |
= |
37 |
* |
(77 |
/ |
230)
|
= |
12.3869565 |
| 4 |
70645 |
2487 |
- |
2485 |
= |
2 |
* |
(80 |
/ |
230)
|
= |
0.69565217 |
| 5 |
70647 |
2555 |
- |
2528 |
= |
27 |
* |
(73 |
/ |
230)
|
= |
8.56956521 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Birney Elementary
|
22 |
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 |
70789 |
2479 |
- |
2436 |
= |
43 |
* |
(90 |
/ |
241)
|
= |
16.05809127 |
| 4 |
70792 |
2516 |
- |
2485 |
= |
31 |
* |
(73 |
/ |
241)
|
= |
9.39004148 |
| 5 |
70793 |
2548 |
- |
2528 |
= |
20 |
* |
(78 |
/ |
241)
|
= |
6.47302904 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Birney Elementary
|
32 |
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 |
71277 |
2469 |
- |
2436 |
= |
33 |
* |
(93 |
/ |
253)
|
= |
12.13043476 |
| 4 |
71278 |
2528 |
- |
2485 |
= |
43 |
* |
(89 |
/ |
253)
|
= |
15.12648221 |
| 5 |
71279 |
2551 |
- |
2528 |
= |
23 |
* |
(71 |
/ |
253)
|
= |
6.45454545 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Birney Elementary
|
34 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
1
|
19
|
22
|
32
|
34
|
108.0 |
21.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 60.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -17.4
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:
