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 |
100554 |
2376 |
- |
2436 |
= |
-60 |
* |
(59 |
/ |
159)
|
= |
-22.26415092 |
| 4 |
100555 |
2418 |
- |
2485 |
= |
-67 |
* |
(50 |
/ |
159)
|
= |
-21.06918234 |
| 5 |
100558 |
2414 |
- |
2528 |
= |
-114 |
* |
(50 |
/ |
159)
|
= |
-35.84905651 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for International Community
|
-79 |
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 |
2860 |
2377 |
- |
2436 |
= |
-59 |
* |
(61 |
/ |
164)
|
= |
-21.94512192 |
| 4 |
2862 |
2427 |
- |
2485 |
= |
-58 |
* |
(51 |
/ |
164)
|
= |
-18.03658532 |
| 5 |
2863 |
2398 |
- |
2528 |
= |
-130 |
* |
(52 |
/ |
164)
|
= |
-41.2195121 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for International Community
|
-81 |
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 |
2934 |
2386 |
- |
2436 |
= |
-50 |
* |
(55 |
/ |
171)
|
= |
-16.0818713 |
| 4 |
2936 |
2428 |
- |
2485 |
= |
-57 |
* |
(62 |
/ |
171)
|
= |
-20.66666664 |
| 5 |
2937 |
2429 |
- |
2528 |
= |
-99 |
* |
(54 |
/ |
171)
|
= |
-31.26315783 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for International Community
|
-68 |
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 |
2936 |
2379 |
- |
2436 |
= |
-57 |
* |
(42 |
/ |
156)
|
= |
-15.34615383 |
| 4 |
2938 |
2424 |
- |
2485 |
= |
-61 |
* |
(60 |
/ |
156)
|
= |
-23.46153842 |
| 5 |
2940 |
2449 |
- |
2528 |
= |
-79 |
* |
(54 |
/ |
156)
|
= |
-27.34615383 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for International Community
|
-66 |
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 |
2959 |
2362 |
- |
2436 |
= |
-74 |
* |
(44 |
/ |
145)
|
= |
-22.45517235 |
| 4 |
2960 |
2430 |
- |
2485 |
= |
-55 |
* |
(42 |
/ |
145)
|
= |
-15.93103446 |
| 5 |
2961 |
2459 |
- |
2528 |
= |
-69 |
* |
(59 |
/ |
145)
|
= |
-28.07586202 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for International Community
|
-66 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-79
|
-81
|
-68
|
-66
|
-66
|
-360.0 |
-72.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -51.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.0
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:
