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 |
86683 |
2368 |
- |
2436 |
= |
-68 |
* |
(46 |
/ |
137)
|
= |
-22.83211676 |
| 4 |
86684 |
2425 |
- |
2485 |
= |
-60 |
* |
(43 |
/ |
137)
|
= |
-18.83211678 |
| 5 |
86687 |
2471 |
- |
2528 |
= |
-57 |
* |
(48 |
/ |
137)
|
= |
-19.97080289 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Burckhalter Elementary
|
-62 |
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 |
2428 |
2416 |
- |
2436 |
= |
-20 |
* |
(41 |
/ |
121)
|
= |
-6.7768595 |
| 4 |
2429 |
2438 |
- |
2485 |
= |
-47 |
* |
(42 |
/ |
121)
|
= |
-16.31404959 |
| 5 |
2432 |
2480 |
- |
2528 |
= |
-48 |
* |
(38 |
/ |
121)
|
= |
-15.07438013 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Burckhalter 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 |
2500 |
2391 |
- |
2436 |
= |
-45 |
* |
(36 |
/ |
112)
|
= |
-14.4642857 |
| 4 |
2502 |
2471 |
- |
2485 |
= |
-14 |
* |
(35 |
/ |
112)
|
= |
-4.375 |
| 5 |
2504 |
2459 |
- |
2528 |
= |
-69 |
* |
(41 |
/ |
112)
|
= |
-25.25892853 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Burckhalter Elementary
|
-44 |
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 |
2503 |
2407 |
- |
2436 |
= |
-29 |
* |
(43 |
/ |
121)
|
= |
-10.3057851 |
| 4 |
2505 |
2432 |
- |
2485 |
= |
-53 |
* |
(41 |
/ |
121)
|
= |
-17.95867768 |
| 5 |
2507 |
2469 |
- |
2528 |
= |
-59 |
* |
(37 |
/ |
121)
|
= |
-18.04132226 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Burckhalter Elementary
|
-46 |
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 |
2525 |
2408 |
- |
2436 |
= |
-28 |
* |
(32 |
/ |
117)
|
= |
-7.65811964 |
| 4 |
2526 |
2448 |
- |
2485 |
= |
-37 |
* |
(43 |
/ |
117)
|
= |
-13.59829058 |
| 5 |
2527 |
2460 |
- |
2528 |
= |
-68 |
* |
(42 |
/ |
117)
|
= |
-24.41025634 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Burckhalter Elementary
|
-46 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-62
|
-38
|
-44
|
-46
|
-46
|
-236.0 |
-47.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -23.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -71.2
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:
