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 |
96480 |
2332 |
- |
2436 |
= |
-104 |
* |
(49 |
/ |
141)
|
= |
-36.14184392 |
| 4 |
96481 |
2417 |
- |
2485 |
= |
-68 |
* |
(55 |
/ |
141)
|
= |
-26.52482263 |
| 5 |
96484 |
2400 |
- |
2528 |
= |
-128 |
* |
(37 |
/ |
141)
|
= |
-33.58865242 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Hoover Elementary
|
-96 |
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 |
2726 |
2348 |
- |
2436 |
= |
-88 |
* |
(37 |
/ |
140)
|
= |
-23.25714283 |
| 4 |
2727 |
2387 |
- |
2485 |
= |
-98 |
* |
(51 |
/ |
140)
|
= |
-35.69999997 |
| 5 |
2730 |
2436 |
- |
2528 |
= |
-92 |
* |
(52 |
/ |
140)
|
= |
-34.17142853 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Hoover Elementary
|
-93 |
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 |
2799 |
2365 |
- |
2436 |
= |
-71 |
* |
(36 |
/ |
123)
|
= |
-20.78048775 |
| 4 |
2801 |
2399 |
- |
2485 |
= |
-86 |
* |
(38 |
/ |
123)
|
= |
-26.56910565 |
| 5 |
2804 |
2413 |
- |
2528 |
= |
-115 |
* |
(49 |
/ |
123)
|
= |
-45.81300805 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Hoover Elementary
|
-93 |
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 |
2804 |
2354 |
- |
2436 |
= |
-82 |
* |
(38 |
/ |
120)
|
= |
-25.96666661 |
| 4 |
2805 |
2384 |
- |
2485 |
= |
-101 |
* |
(37 |
/ |
120)
|
= |
-31.14166663 |
| 5 |
2808 |
2410 |
- |
2528 |
= |
-118 |
* |
(45 |
/ |
120)
|
= |
-44.25 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Hoover Elementary
|
-101 |
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 |
2825 |
2361 |
- |
2436 |
= |
-75 |
* |
(44 |
/ |
121)
|
= |
-27.27272723 |
| 4 |
2826 |
2384 |
- |
2485 |
= |
-101 |
* |
(39 |
/ |
121)
|
= |
-32.55371895 |
| 5 |
2827 |
2421 |
- |
2528 |
= |
-107 |
* |
(38 |
/ |
121)
|
= |
-33.6033057 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Hoover Elementary
|
-93 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-96
|
-93
|
-93
|
-101
|
-93
|
-476.0 |
-95.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -86.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -104.2
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:
