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 |
951695 |
2391 |
- |
2436 |
= |
-45 |
* |
(90 |
/ |
297)
|
= |
-13.63636364 |
| 4 |
951696 |
2425 |
- |
2485 |
= |
-60 |
* |
(102 |
/ |
297)
|
= |
-20.60606058 |
| 5 |
951699 |
2432 |
- |
2528 |
= |
-96 |
* |
(105 |
/ |
297)
|
= |
-33.93939389 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for San Fernando Elementary
|
-68 |
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 |
30106 |
2400 |
- |
2436 |
= |
-36 |
* |
(110 |
/ |
297)
|
= |
-13.33333332 |
| 4 |
30109 |
2435 |
- |
2485 |
= |
-50 |
* |
(86 |
/ |
297)
|
= |
-14.47811445 |
| 5 |
30111 |
2469 |
- |
2528 |
= |
-59 |
* |
(101 |
/ |
297)
|
= |
-20.06397306 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for San Fernando Elementary
|
-48 |
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 |
30672 |
2418 |
- |
2436 |
= |
-18 |
* |
(95 |
/ |
292)
|
= |
-5.85616437 |
| 4 |
30674 |
2434 |
- |
2485 |
= |
-51 |
* |
(105 |
/ |
292)
|
= |
-18.33904109 |
| 5 |
30676 |
2486 |
- |
2528 |
= |
-42 |
* |
(92 |
/ |
292)
|
= |
-13.23287671 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for San Fernando Elementary
|
-37 |
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 |
30721 |
2389 |
- |
2436 |
= |
-47 |
* |
(82 |
/ |
279)
|
= |
-13.81362007 |
| 4 |
30722 |
2418 |
- |
2485 |
= |
-67 |
* |
(94 |
/ |
279)
|
= |
-22.57347665 |
| 5 |
30725 |
2448 |
- |
2528 |
= |
-80 |
* |
(103 |
/ |
279)
|
= |
-29.53405016 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for San Fernando Elementary
|
-66 |
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 |
30896 |
2395 |
- |
2436 |
= |
-41 |
* |
(81 |
/ |
254)
|
= |
-13.07480312 |
| 4 |
30897 |
2431 |
- |
2485 |
= |
-54 |
* |
(79 |
/ |
254)
|
= |
-16.79527559 |
| 5 |
30898 |
2463 |
- |
2528 |
= |
-65 |
* |
(94 |
/ |
254)
|
= |
-24.0551181 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for San Fernando Elementary
|
-54 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-68
|
-48
|
-37
|
-66
|
-54
|
-273.0 |
-54.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -18.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -90.6
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:
