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 |
674498 |
2440 |
- |
2436 |
= |
4 |
* |
(108 |
/ |
108)
|
= |
4.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Ward (E. W.) Elementary
|
4 |
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 |
21346 |
2426 |
- |
2436 |
= |
-10 |
* |
(104 |
/ |
104)
|
= |
-10.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Ward (E. W.) Elementary
|
-10 |
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 |
21753 |
2408 |
- |
2436 |
= |
-28 |
* |
(103 |
/ |
103)
|
= |
-28.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Ward (E. W.) Elementary
|
-28 |
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 |
21728 |
2465 |
- |
2436 |
= |
29 |
* |
(95 |
/ |
95)
|
= |
29.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Ward (E. W.) Elementary
|
29 |
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 |
21896 |
2451 |
- |
2436 |
= |
15 |
* |
(107 |
/ |
107)
|
= |
15.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Ward (E. W.) Elementary
|
15 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
4
|
-10
|
-28
|
29
|
15
|
10.0 |
2.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 68.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -64.0
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:
