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 |
925790 |
2381 |
- |
2436 |
= |
-55 |
* |
(78 |
/ |
209)
|
= |
-20.52631576 |
| 4 |
925791 |
2415 |
- |
2485 |
= |
-70 |
* |
(63 |
/ |
209)
|
= |
-21.10047842 |
| 5 |
925794 |
2401 |
- |
2528 |
= |
-127 |
* |
(68 |
/ |
209)
|
= |
-41.32057408 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Loreto Street Elementary
|
-83 |
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 |
29268 |
2377 |
- |
2436 |
= |
-59 |
* |
(60 |
/ |
206)
|
= |
-17.18446597 |
| 4 |
29271 |
2416 |
- |
2485 |
= |
-69 |
* |
(80 |
/ |
206)
|
= |
-26.79611647 |
| 5 |
29272 |
2474 |
- |
2528 |
= |
-54 |
* |
(66 |
/ |
206)
|
= |
-17.30097085 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Loreto Street 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 |
29833 |
2388 |
- |
2436 |
= |
-48 |
* |
(51 |
/ |
183)
|
= |
-13.37704915 |
| 4 |
29836 |
2419 |
- |
2485 |
= |
-66 |
* |
(53 |
/ |
183)
|
= |
-19.11475408 |
| 5 |
29838 |
2437 |
- |
2528 |
= |
-91 |
* |
(79 |
/ |
183)
|
= |
-39.284153 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Loreto Street 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 |
29883 |
2393 |
- |
2436 |
= |
-43 |
* |
(56 |
/ |
160)
|
= |
-15.05 |
| 4 |
29885 |
2420 |
- |
2485 |
= |
-65 |
* |
(48 |
/ |
160)
|
= |
-19.5 |
| 5 |
29887 |
2480 |
- |
2528 |
= |
-48 |
* |
(56 |
/ |
160)
|
= |
-16.8 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Loreto Street 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 |
30058 |
2365 |
- |
2436 |
= |
-71 |
* |
(43 |
/ |
133)
|
= |
-22.95488717 |
| 4 |
30059 |
2432 |
- |
2485 |
= |
-53 |
* |
(48 |
/ |
133)
|
= |
-19.12781952 |
| 5 |
30060 |
2453 |
- |
2528 |
= |
-75 |
* |
(42 |
/ |
133)
|
= |
-23.68421048 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Loreto Street Elementary
|
-66 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-83
|
-61
|
-72
|
-51
|
-66
|
-333.0 |
-66.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -33.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -99.6
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:
