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 |
886811 |
2420 |
- |
2436 |
= |
-16 |
* |
(71 |
/ |
187)
|
= |
-6.0748663 |
| 4 |
886812 |
2450 |
- |
2485 |
= |
-35 |
* |
(63 |
/ |
187)
|
= |
-11.79144383 |
| 5 |
886815 |
2496 |
- |
2528 |
= |
-32 |
* |
(53 |
/ |
187)
|
= |
-9.06951869 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Chapman Elementary
|
-27 |
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 |
28043 |
2455 |
- |
2436 |
= |
19 |
* |
(75 |
/ |
196)
|
= |
7.27040816 |
| 4 |
28045 |
2463 |
- |
2485 |
= |
-22 |
* |
(67 |
/ |
196)
|
= |
-7.52040815 |
| 5 |
28046 |
2491 |
- |
2528 |
= |
-37 |
* |
(54 |
/ |
196)
|
= |
-10.19387755 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Chapman 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 |
28609 |
2442 |
- |
2436 |
= |
6 |
* |
(72 |
/ |
208)
|
= |
2.07692308 |
| 4 |
28611 |
2495 |
- |
2485 |
= |
10 |
* |
(70 |
/ |
208)
|
= |
3.36538461 |
| 5 |
28614 |
2512 |
- |
2528 |
= |
-16 |
* |
(66 |
/ |
208)
|
= |
-5.07692307 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Chapman Elementary
|
0 |
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 |
28660 |
2461 |
- |
2436 |
= |
25 |
* |
(53 |
/ |
181)
|
= |
7.32044198 |
| 4 |
28662 |
2501 |
- |
2485 |
= |
16 |
* |
(66 |
/ |
181)
|
= |
5.83425413 |
| 5 |
28664 |
2554 |
- |
2528 |
= |
26 |
* |
(62 |
/ |
181)
|
= |
8.90607734 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Chapman Elementary
|
22 |
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 |
28840 |
2461 |
- |
2436 |
= |
25 |
* |
(66 |
/ |
196)
|
= |
8.41836733 |
| 4 |
28841 |
2491 |
- |
2485 |
= |
6 |
* |
(61 |
/ |
196)
|
= |
1.86734693 |
| 5 |
28842 |
2528 |
- |
2528 |
= |
0 |
* |
(69 |
/ |
196)
|
= |
0.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Chapman Elementary
|
10 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-27
|
-10
|
0
|
22
|
10
|
-5.0 |
-1.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 61.75
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -64.25
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:
