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 |
2278320 |
2376 |
- |
2436 |
= |
-60 |
* |
(64 |
/ |
241)
|
= |
-15.9336099 |
| 4 |
2278323 |
2415 |
- |
2485 |
= |
-70 |
* |
(86 |
/ |
241)
|
= |
-24.97925311 |
| 5 |
2278324 |
2429 |
- |
2528 |
= |
-99 |
* |
(91 |
/ |
241)
|
= |
-37.38174264 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Chavez Elementary
|
-78 |
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 |
69847 |
2395 |
- |
2436 |
= |
-41 |
* |
(85 |
/ |
219)
|
= |
-15.91324197 |
| 4 |
69849 |
2405 |
- |
2485 |
= |
-80 |
* |
(62 |
/ |
219)
|
= |
-22.64840176 |
| 5 |
69852 |
2434 |
- |
2528 |
= |
-94 |
* |
(72 |
/ |
219)
|
= |
-30.90410956 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Chavez Elementary
|
-69 |
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 |
71683 |
2382 |
- |
2436 |
= |
-54 |
* |
(73 |
/ |
222)
|
= |
-17.75675671 |
| 4 |
71685 |
2398 |
- |
2485 |
= |
-87 |
* |
(84 |
/ |
222)
|
= |
-32.91891889 |
| 5 |
71687 |
2424 |
- |
2528 |
= |
-104 |
* |
(65 |
/ |
222)
|
= |
-30.45045037 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Chavez Elementary
|
-81 |
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 |
71828 |
2395 |
- |
2436 |
= |
-41 |
* |
(69 |
/ |
211)
|
= |
-13.40758294 |
| 4 |
71829 |
2383 |
- |
2485 |
= |
-102 |
* |
(70 |
/ |
211)
|
= |
-33.83886251 |
| 5 |
71832 |
2422 |
- |
2528 |
= |
-106 |
* |
(72 |
/ |
211)
|
= |
-36.17061606 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Chavez Elementary
|
-83 |
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 |
72313 |
2399 |
- |
2436 |
= |
-37 |
* |
(81 |
/ |
222)
|
= |
-13.49999997 |
| 4 |
72314 |
2439 |
- |
2485 |
= |
-46 |
* |
(73 |
/ |
222)
|
= |
-15.12612609 |
| 5 |
72315 |
2415 |
- |
2528 |
= |
-113 |
* |
(68 |
/ |
222)
|
= |
-34.61261258 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Chavez Elementary
|
-63 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-78
|
-69
|
-81
|
-83
|
-63
|
-374.0 |
-74.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -50.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -98.8
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:
