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 |
776400 |
2414 |
- |
2436 |
= |
-22 |
* |
(102 |
/ |
250)
|
= |
-8.976 |
| 4 |
776401 |
2449 |
- |
2485 |
= |
-36 |
* |
(76 |
/ |
250)
|
= |
-10.944 |
| 5 |
776404 |
2484 |
- |
2528 |
= |
-44 |
* |
(72 |
/ |
250)
|
= |
-12.672 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Riley Elementary
|
-33 |
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 |
24333 |
2424 |
- |
2436 |
= |
-12 |
* |
(66 |
/ |
239)
|
= |
-3.31380752 |
| 4 |
24335 |
2486 |
- |
2485 |
= |
1 |
* |
(99 |
/ |
239)
|
= |
0.41422594 |
| 5 |
24337 |
2466 |
- |
2528 |
= |
-62 |
* |
(74 |
/ |
239)
|
= |
-19.19665266 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Riley Elementary
|
-22 |
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 |
24833 |
2411 |
- |
2436 |
= |
-25 |
* |
(72 |
/ |
233)
|
= |
-7.72532188 |
| 4 |
24836 |
2477 |
- |
2485 |
= |
-8 |
* |
(63 |
/ |
233)
|
= |
-2.16309013 |
| 5 |
24837 |
2506 |
- |
2528 |
= |
-22 |
* |
(98 |
/ |
233)
|
= |
-9.25321888 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Riley Elementary
|
-19 |
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 |
24856 |
2424 |
- |
2436 |
= |
-12 |
* |
(63 |
/ |
187)
|
= |
-4.04278074 |
| 4 |
24858 |
2483 |
- |
2485 |
= |
-2 |
* |
(63 |
/ |
187)
|
= |
-0.67379679 |
| 5 |
24860 |
2488 |
- |
2528 |
= |
-40 |
* |
(61 |
/ |
187)
|
= |
-13.04812832 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Riley Elementary
|
-18 |
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 |
25026 |
2439 |
- |
2436 |
= |
3 |
* |
(64 |
/ |
191)
|
= |
1.0052356 |
| 4 |
25027 |
2502 |
- |
2485 |
= |
17 |
* |
(60 |
/ |
191)
|
= |
5.34031413 |
| 5 |
25028 |
2500 |
- |
2528 |
= |
-28 |
* |
(67 |
/ |
191)
|
= |
-9.82198952 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Riley Elementary
|
-3 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-33
|
-22
|
-19
|
-18
|
-3
|
-95.0 |
-19.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 11.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -49.0
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:
