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 |
50369 |
2445 |
- |
2436 |
= |
9 |
* |
(42 |
/ |
80)
|
= |
4.725 |
| 4 |
50370 |
2511 |
- |
2485 |
= |
26 |
* |
(24 |
/ |
80)
|
= |
7.8 |
| 5 |
50372 |
2519 |
- |
2528 |
= |
-9 |
* |
(14 |
/ |
80)
|
= |
-1.575 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Heritage 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 |
50379 |
2462 |
- |
2436 |
= |
26 |
* |
(50 |
/ |
124)
|
= |
10.48387096 |
| 4 |
50380 |
2495 |
- |
2485 |
= |
10 |
* |
(47 |
/ |
124)
|
= |
3.79032258 |
| 5 |
50383 |
2533 |
- |
2528 |
= |
5 |
* |
(27 |
/ |
124)
|
= |
1.08870968 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Heritage Elementary
|
15 |
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 |
50575 |
2463 |
- |
2436 |
= |
27 |
* |
(47 |
/ |
126)
|
= |
10.07142857 |
| 4 |
50576 |
2520 |
- |
2485 |
= |
35 |
* |
(41 |
/ |
126)
|
= |
11.38888888 |
| 5 |
50577 |
2550 |
- |
2528 |
= |
22 |
* |
(38 |
/ |
126)
|
= |
6.63492062 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Heritage Elementary
|
28 |
Last steps
Compute the average
| 2017 |
2018 |
2019 |
Sum |
Average |
|
11
|
15
|
28
|
54.0 |
18.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 42.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -6.0
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:
