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 |
971422 |
2408 |
- |
2436 |
= |
-28 |
* |
(123 |
/ |
347)
|
= |
-9.92507202 |
| 4 |
971425 |
2436 |
- |
2485 |
= |
-49 |
* |
(120 |
/ |
347)
|
= |
-16.94524493 |
| 5 |
971426 |
2477 |
- |
2528 |
= |
-51 |
* |
(104 |
/ |
347)
|
= |
-15.28530257 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Vermont Avenue Elementary
|
-42 |
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 |
30735 |
2399 |
- |
2436 |
= |
-37 |
* |
(106 |
/ |
335)
|
= |
-11.70746267 |
| 4 |
30736 |
2455 |
- |
2485 |
= |
-30 |
* |
(115 |
/ |
335)
|
= |
-10.29850746 |
| 5 |
30739 |
2505 |
- |
2528 |
= |
-23 |
* |
(114 |
/ |
335)
|
= |
-7.82686566 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Vermont Avenue Elementary
|
-30 |
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 |
31299 |
2407 |
- |
2436 |
= |
-29 |
* |
(106 |
/ |
323)
|
= |
-9.51702785 |
| 4 |
31302 |
2434 |
- |
2485 |
= |
-51 |
* |
(103 |
/ |
323)
|
= |
-16.26315785 |
| 5 |
31304 |
2475 |
- |
2528 |
= |
-53 |
* |
(114 |
/ |
323)
|
= |
-18.70588233 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Vermont Avenue Elementary
|
-44 |
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 |
31346 |
2401 |
- |
2436 |
= |
-35 |
* |
(74 |
/ |
279)
|
= |
-9.28315409 |
| 4 |
31348 |
2433 |
- |
2485 |
= |
-52 |
* |
(102 |
/ |
279)
|
= |
-19.01075264 |
| 5 |
31350 |
2467 |
- |
2528 |
= |
-61 |
* |
(103 |
/ |
279)
|
= |
-22.51971325 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Vermont Avenue Elementary
|
-51 |
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 |
31522 |
2398 |
- |
2436 |
= |
-38 |
* |
(91 |
/ |
257)
|
= |
-13.45525291 |
| 4 |
31523 |
2449 |
- |
2485 |
= |
-36 |
* |
(67 |
/ |
257)
|
= |
-9.385214 |
| 5 |
31524 |
2467 |
- |
2528 |
= |
-61 |
* |
(99 |
/ |
257)
|
= |
-23.49805443 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Vermont Avenue Elementary
|
-46 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-42
|
-30
|
-44
|
-51
|
-46
|
-213.0 |
-42.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -21.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -63.6
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:
