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 |
2366981 |
2383 |
- |
2436 |
= |
-53 |
* |
(50 |
/ |
117)
|
= |
-22.64957263 |
| 4 |
2366984 |
2384 |
- |
2485 |
= |
-101 |
* |
(39 |
/ |
117)
|
= |
-33.66666663 |
| 5 |
2366985 |
2443 |
- |
2528 |
= |
-85 |
* |
(28 |
/ |
117)
|
= |
-20.34188032 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Muir (John) Elementary
|
-77 |
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 |
72312 |
2345 |
- |
2436 |
= |
-91 |
* |
(49 |
/ |
125)
|
= |
-35.672 |
| 4 |
72314 |
2432 |
- |
2485 |
= |
-53 |
* |
(45 |
/ |
125)
|
= |
-19.08 |
| 5 |
72315 |
2432 |
- |
2528 |
= |
-96 |
* |
(31 |
/ |
125)
|
= |
-23.808 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Muir (John) Elementary
|
-79 |
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 |
74286 |
2448 |
- |
2436 |
= |
12 |
* |
(41 |
/ |
117)
|
= |
4.2051282 |
| 4 |
74288 |
2432 |
- |
2485 |
= |
-53 |
* |
(43 |
/ |
117)
|
= |
-19.47863245 |
| 5 |
74290 |
2493 |
- |
2528 |
= |
-35 |
* |
(33 |
/ |
117)
|
= |
-9.87179487 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Muir (John) Elementary
|
-25 |
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 |
74460 |
2401 |
- |
2436 |
= |
-35 |
* |
(40 |
/ |
111)
|
= |
-12.6126126 |
| 4 |
74461 |
2458 |
- |
2485 |
= |
-27 |
* |
(34 |
/ |
111)
|
= |
-8.27027026 |
| 5 |
74464 |
2505 |
- |
2528 |
= |
-23 |
* |
(37 |
/ |
111)
|
= |
-7.66666666 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Muir (John) 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 |
74983 |
2425 |
- |
2436 |
= |
-11 |
* |
(34 |
/ |
98)
|
= |
-3.81632653 |
| 4 |
74984 |
2474 |
- |
2485 |
= |
-11 |
* |
(37 |
/ |
98)
|
= |
-4.15306122 |
| 5 |
74985 |
2561 |
- |
2528 |
= |
33 |
* |
(27 |
/ |
98)
|
= |
9.09183673 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Muir (John) Elementary
|
1 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-77
|
-79
|
-25
|
-29
|
1
|
-209.0 |
-41.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 63.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -146.8
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:
