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 |
880755 |
2372 |
- |
2436 |
= |
-64 |
* |
(68 |
/ |
207)
|
= |
-21.02415456 |
4 |
880758 |
2390 |
- |
2485 |
= |
-95 |
* |
(69 |
/ |
207)
|
= |
-31.66666664 |
5 |
880759 |
2393 |
- |
2528 |
= |
-135 |
* |
(70 |
/ |
207)
|
= |
-45.65217389 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Cabrillo Avenue Elementary
|
-98 |
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 |
27869 |
2381 |
- |
2436 |
= |
-55 |
* |
(49 |
/ |
195)
|
= |
-13.82051281 |
4 |
27871 |
2411 |
- |
2485 |
= |
-74 |
* |
(73 |
/ |
195)
|
= |
-27.70256408 |
5 |
27872 |
2461 |
- |
2528 |
= |
-67 |
* |
(73 |
/ |
195)
|
= |
-25.08205126 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Cabrillo Avenue Elementary
|
-67 |
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 |
28435 |
2380 |
- |
2436 |
= |
-56 |
* |
(50 |
/ |
181)
|
= |
-15.46961321 |
4 |
28437 |
2397 |
- |
2485 |
= |
-88 |
* |
(57 |
/ |
181)
|
= |
-27.71270718 |
5 |
28439 |
2458 |
- |
2528 |
= |
-70 |
* |
(74 |
/ |
181)
|
= |
-28.61878453 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Cabrillo Avenue Elementary
|
-72 |
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 |
28487 |
2395 |
- |
2436 |
= |
-41 |
* |
(64 |
/ |
173)
|
= |
-15.16763004 |
4 |
28489 |
2429 |
- |
2485 |
= |
-56 |
* |
(48 |
/ |
173)
|
= |
-15.53757223 |
5 |
28491 |
2475 |
- |
2528 |
= |
-53 |
* |
(61 |
/ |
173)
|
= |
-18.68786127 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Cabrillo Avenue Elementary
|
-49 |
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 |
28666 |
2377 |
- |
2436 |
= |
-59 |
* |
(57 |
/ |
172)
|
= |
-19.55232553 |
4 |
28667 |
2454 |
- |
2485 |
= |
-31 |
* |
(67 |
/ |
172)
|
= |
-12.07558137 |
5 |
28668 |
2430 |
- |
2528 |
= |
-98 |
* |
(48 |
/ |
172)
|
= |
-27.34883717 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Cabrillo Avenue Elementary
|
-59 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-98
|
-67
|
-72
|
-49
|
-59
|
-345.0 |
-69.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -123.0
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: