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 |
947853 |
2426 |
- |
2436 |
= |
-10 |
* |
(66 |
/ |
187)
|
= |
-3.52941176 |
| 4 |
947854 |
2453 |
- |
2485 |
= |
-32 |
* |
(63 |
/ |
187)
|
= |
-10.78074864 |
| 5 |
947857 |
2494 |
- |
2528 |
= |
-34 |
* |
(58 |
/ |
187)
|
= |
-10.54545452 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Reseda Elementary
|
-25 |
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 |
29983 |
2414 |
- |
2436 |
= |
-22 |
* |
(61 |
/ |
197)
|
= |
-6.81218274 |
| 4 |
29984 |
2453 |
- |
2485 |
= |
-32 |
* |
(71 |
/ |
197)
|
= |
-11.53299491 |
| 5 |
29987 |
2460 |
- |
2528 |
= |
-68 |
* |
(65 |
/ |
197)
|
= |
-22.43654818 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Reseda Elementary
|
-41 |
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 |
30547 |
2423 |
- |
2436 |
= |
-13 |
* |
(57 |
/ |
190)
|
= |
-3.9 |
| 4 |
30549 |
2448 |
- |
2485 |
= |
-37 |
* |
(63 |
/ |
190)
|
= |
-12.26842104 |
| 5 |
30552 |
2479 |
- |
2528 |
= |
-49 |
* |
(70 |
/ |
190)
|
= |
-18.05263155 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Reseda Elementary
|
-34 |
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 |
30599 |
2426 |
- |
2436 |
= |
-10 |
* |
(61 |
/ |
175)
|
= |
-3.48571428 |
| 4 |
30601 |
2459 |
- |
2485 |
= |
-26 |
* |
(54 |
/ |
175)
|
= |
-8.02285713 |
| 5 |
30603 |
2496 |
- |
2528 |
= |
-32 |
* |
(60 |
/ |
175)
|
= |
-10.97142854 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Reseda 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 |
30774 |
2449 |
- |
2436 |
= |
13 |
* |
(60 |
/ |
178)
|
= |
4.38202246 |
| 4 |
30775 |
2435 |
- |
2485 |
= |
-50 |
* |
(63 |
/ |
178)
|
= |
-17.6966292 |
| 5 |
30776 |
2490 |
- |
2528 |
= |
-38 |
* |
(55 |
/ |
178)
|
= |
-11.74157303 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Reseda Elementary
|
-25 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-25
|
-41
|
-34
|
-22
|
-25
|
-147.0 |
-29.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -8.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -50.4
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:
