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 |
2358662 |
2462 |
- |
2436 |
= |
26 |
* |
(84 |
/ |
267)
|
= |
8.17977527 |
| 4 |
2358663 |
2510 |
- |
2485 |
= |
25 |
* |
(93 |
/ |
267)
|
= |
8.70786515 |
| 5 |
2358666 |
2536 |
- |
2528 |
= |
8 |
* |
(90 |
/ |
267)
|
= |
2.69662921 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Alamo Elementary
|
20 |
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 |
72067 |
2484 |
- |
2436 |
= |
48 |
* |
(86 |
/ |
260)
|
= |
15.87692304 |
| 4 |
72069 |
2533 |
- |
2485 |
= |
48 |
* |
(84 |
/ |
260)
|
= |
15.5076923 |
| 5 |
72072 |
2546 |
- |
2528 |
= |
18 |
* |
(90 |
/ |
260)
|
= |
6.23076923 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Alamo Elementary
|
38 |
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 |
74041 |
2475 |
- |
2436 |
= |
39 |
* |
(87 |
/ |
256)
|
= |
13.25390625 |
| 4 |
74044 |
2532 |
- |
2485 |
= |
47 |
* |
(83 |
/ |
256)
|
= |
15.23828125 |
| 5 |
74045 |
2552 |
- |
2528 |
= |
24 |
* |
(86 |
/ |
256)
|
= |
8.0625 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Alamo Elementary
|
37 |
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 |
74216 |
2476 |
- |
2436 |
= |
40 |
* |
(87 |
/ |
262)
|
= |
13.28244272 |
| 4 |
74217 |
2525 |
- |
2485 |
= |
40 |
* |
(88 |
/ |
262)
|
= |
13.43511448 |
| 5 |
74220 |
2564 |
- |
2528 |
= |
36 |
* |
(87 |
/ |
262)
|
= |
11.95419845 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Alamo Elementary
|
39 |
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 |
74739 |
2478 |
- |
2436 |
= |
42 |
* |
(85 |
/ |
259)
|
= |
13.78378378 |
| 4 |
74740 |
2516 |
- |
2485 |
= |
31 |
* |
(88 |
/ |
259)
|
= |
10.53281851 |
| 5 |
74741 |
2560 |
- |
2528 |
= |
32 |
* |
(86 |
/ |
259)
|
= |
10.62548262 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Alamo Elementary
|
35 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
20
|
38
|
37
|
39
|
35
|
169.0 |
33.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 54.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 12.8
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:
