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 |
91371 |
2394 |
- |
2436 |
= |
-42 |
* |
(85 |
/ |
259)
|
= |
-13.78378378 |
| 4 |
91372 |
2420 |
- |
2485 |
= |
-65 |
* |
(90 |
/ |
259)
|
= |
-22.58687256 |
| 5 |
91375 |
2469 |
- |
2528 |
= |
-59 |
* |
(84 |
/ |
259)
|
= |
-19.13513512 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Laurel Elementary
|
-56 |
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 |
2569 |
2378 |
- |
2436 |
= |
-58 |
* |
(85 |
/ |
259)
|
= |
-19.03474902 |
| 4 |
2572 |
2426 |
- |
2485 |
= |
-59 |
* |
(86 |
/ |
259)
|
= |
-19.59073359 |
| 5 |
2574 |
2462 |
- |
2528 |
= |
-66 |
* |
(88 |
/ |
259)
|
= |
-22.42471037 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Laurel Elementary
|
-61 |
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 |
2641 |
2388 |
- |
2436 |
= |
-48 |
* |
(95 |
/ |
267)
|
= |
-17.07865166 |
| 4 |
2643 |
2415 |
- |
2485 |
= |
-70 |
* |
(84 |
/ |
267)
|
= |
-22.02247187 |
| 5 |
2645 |
2473 |
- |
2528 |
= |
-55 |
* |
(88 |
/ |
267)
|
= |
-18.12734077 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Laurel Elementary
|
-57 |
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 |
2645 |
2397 |
- |
2436 |
= |
-39 |
* |
(70 |
/ |
244)
|
= |
-11.18852456 |
| 4 |
2647 |
2433 |
- |
2485 |
= |
-52 |
* |
(90 |
/ |
244)
|
= |
-19.18032787 |
| 5 |
2649 |
2438 |
- |
2528 |
= |
-90 |
* |
(84 |
/ |
244)
|
= |
-30.98360655 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Laurel Elementary
|
-61 |
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 |
2667 |
2418 |
- |
2436 |
= |
-18 |
* |
(76 |
/ |
227)
|
= |
-6.02643172 |
| 4 |
2668 |
2443 |
- |
2485 |
= |
-42 |
* |
(61 |
/ |
227)
|
= |
-11.28634357 |
| 5 |
2669 |
2452 |
- |
2528 |
= |
-76 |
* |
(90 |
/ |
227)
|
= |
-30.13215852 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Laurel Elementary
|
-47 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-56
|
-61
|
-57
|
-61
|
-47
|
-282.0 |
-56.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -41.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -71.4
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:
