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 |
948720 |
2447 |
- |
2436 |
= |
11 |
* |
(66 |
/ |
187)
|
= |
3.88235294 |
| 4 |
948723 |
2497 |
- |
2485 |
= |
12 |
* |
(67 |
/ |
187)
|
= |
4.29946524 |
| 5 |
948724 |
2495 |
- |
2528 |
= |
-33 |
* |
(54 |
/ |
187)
|
= |
-9.52941175 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Rio Vista Elementary
|
-1 |
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 |
30011 |
2450 |
- |
2436 |
= |
14 |
* |
(63 |
/ |
185)
|
= |
4.76756756 |
| 4 |
30012 |
2502 |
- |
2485 |
= |
17 |
* |
(62 |
/ |
185)
|
= |
5.6972973 |
| 5 |
30015 |
2518 |
- |
2528 |
= |
-10 |
* |
(60 |
/ |
185)
|
= |
-3.24324324 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Rio Vista Elementary
|
7 |
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 |
30576 |
2454 |
- |
2436 |
= |
18 |
* |
(64 |
/ |
182)
|
= |
6.32967032 |
| 4 |
30577 |
2510 |
- |
2485 |
= |
25 |
* |
(57 |
/ |
182)
|
= |
7.82967033 |
| 5 |
30580 |
2489 |
- |
2528 |
= |
-39 |
* |
(61 |
/ |
182)
|
= |
-13.07142857 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Rio Vista Elementary
|
1 |
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 |
30627 |
2453 |
- |
2436 |
= |
17 |
* |
(71 |
/ |
191)
|
= |
6.31937172 |
| 4 |
30629 |
2520 |
- |
2485 |
= |
35 |
* |
(60 |
/ |
191)
|
= |
10.99476438 |
| 5 |
30631 |
2526 |
- |
2528 |
= |
-2 |
* |
(60 |
/ |
191)
|
= |
-0.62827225 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Rio Vista Elementary
|
17 |
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 |
30802 |
2479 |
- |
2436 |
= |
43 |
* |
(61 |
/ |
188)
|
= |
13.95212766 |
| 4 |
30803 |
2502 |
- |
2485 |
= |
17 |
* |
(65 |
/ |
188)
|
= |
5.87765956 |
| 5 |
30804 |
2539 |
- |
2528 |
= |
11 |
* |
(62 |
/ |
188)
|
= |
3.62765957 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Rio Vista Elementary
|
23 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-1
|
7
|
1
|
17
|
23
|
47.0 |
9.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 39.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -20.6
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:
