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 |
2372846 |
2446 |
- |
2436 |
= |
10 |
* |
(62 |
/ |
169)
|
= |
3.66863905 |
| 4 |
2372849 |
2449 |
- |
2485 |
= |
-36 |
* |
(57 |
/ |
169)
|
= |
-12.14201182 |
| 5 |
2372850 |
2516 |
- |
2528 |
= |
-12 |
* |
(50 |
/ |
169)
|
= |
-3.55029586 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Spring Valley Elementary
|
-12 |
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 |
72483 |
2453 |
- |
2436 |
= |
17 |
* |
(65 |
/ |
174)
|
= |
6.35057471 |
| 4 |
72486 |
2448 |
- |
2485 |
= |
-37 |
* |
(57 |
/ |
174)
|
= |
-12.12068962 |
| 5 |
72487 |
2485 |
- |
2528 |
= |
-43 |
* |
(52 |
/ |
174)
|
= |
-12.85057468 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Spring Valley Elementary
|
-19 |
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 |
74458 |
2459 |
- |
2436 |
= |
23 |
* |
(53 |
/ |
156)
|
= |
7.81410255 |
| 4 |
74460 |
2468 |
- |
2485 |
= |
-17 |
* |
(52 |
/ |
156)
|
= |
-5.66666666 |
| 5 |
74461 |
2487 |
- |
2528 |
= |
-41 |
* |
(51 |
/ |
156)
|
= |
-13.40384612 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Spring Valley Elementary
|
-11 |
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 |
74632 |
2445 |
- |
2436 |
= |
9 |
* |
(57 |
/ |
156)
|
= |
3.28846154 |
| 4 |
74634 |
2469 |
- |
2485 |
= |
-16 |
* |
(52 |
/ |
156)
|
= |
-5.33333333 |
| 5 |
74635 |
2533 |
- |
2528 |
= |
5 |
* |
(47 |
/ |
156)
|
= |
1.50641026 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Spring Valley Elementary
|
-1 |
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 |
75157 |
2475 |
- |
2436 |
= |
39 |
* |
(57 |
/ |
162)
|
= |
13.72222219 |
| 4 |
75158 |
2460 |
- |
2485 |
= |
-25 |
* |
(50 |
/ |
162)
|
= |
-7.71604938 |
| 5 |
75159 |
2493 |
- |
2528 |
= |
-35 |
* |
(55 |
/ |
162)
|
= |
-11.88271602 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Spring Valley Elementary
|
-6 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-12
|
-19
|
-11
|
-1
|
-6
|
-49.0 |
-9.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 8.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -27.8
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:
