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 |
917505 |
2396 |
- |
2436 |
= |
-40 |
* |
(117 |
/ |
414)
|
= |
-11.3043478 |
| 4 |
917506 |
2409 |
- |
2485 |
= |
-76 |
* |
(148 |
/ |
414)
|
= |
-27.16908207 |
| 5 |
917509 |
2431 |
- |
2528 |
= |
-97 |
* |
(149 |
/ |
414)
|
= |
-34.91062796 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Humphreys Avenue Elementary
|
-73 |
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 |
29007 |
2407 |
- |
2436 |
= |
-29 |
* |
(110 |
/ |
365)
|
= |
-8.73972603 |
| 4 |
29008 |
2432 |
- |
2485 |
= |
-53 |
* |
(118 |
/ |
365)
|
= |
-17.13424656 |
| 5 |
29010 |
2447 |
- |
2528 |
= |
-81 |
* |
(137 |
/ |
365)
|
= |
-30.40273967 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Humphreys Avenue Elementary
|
-56 |
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 |
29571 |
2400 |
- |
2436 |
= |
-36 |
* |
(102 |
/ |
316)
|
= |
-11.62025316 |
| 4 |
29574 |
2442 |
- |
2485 |
= |
-43 |
* |
(106 |
/ |
316)
|
= |
-14.42405059 |
| 5 |
29575 |
2477 |
- |
2528 |
= |
-51 |
* |
(108 |
/ |
316)
|
= |
-17.4303797 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Humphreys Avenue Elementary
|
-43 |
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 |
29621 |
2420 |
- |
2436 |
= |
-16 |
* |
(115 |
/ |
319)
|
= |
-5.76802507 |
| 4 |
29623 |
2453 |
- |
2485 |
= |
-32 |
* |
(101 |
/ |
319)
|
= |
-10.13166144 |
| 5 |
29625 |
2491 |
- |
2528 |
= |
-37 |
* |
(103 |
/ |
319)
|
= |
-11.94670844 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Humphreys Avenue Elementary
|
-28 |
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 |
29796 |
2407 |
- |
2436 |
= |
-29 |
* |
(81 |
/ |
297)
|
= |
-7.90909089 |
| 4 |
29797 |
2450 |
- |
2485 |
= |
-35 |
* |
(114 |
/ |
297)
|
= |
-13.43434341 |
| 5 |
29798 |
2475 |
- |
2528 |
= |
-53 |
* |
(102 |
/ |
297)
|
= |
-18.20202018 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Humphreys Avenue Elementary
|
-40 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-73
|
-56
|
-43
|
-28
|
-40
|
-240.0 |
-48.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 3.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -99.0
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:
