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 |
315107 |
2361 |
- |
2436 |
= |
-75 |
* |
(99 |
/ |
329)
|
= |
-22.56838905 |
| 4 |
315108 |
2401 |
- |
2485 |
= |
-84 |
* |
(85 |
/ |
329)
|
= |
-21.70212761 |
| 5 |
315111 |
2421 |
- |
2528 |
= |
-107 |
* |
(84 |
/ |
329)
|
= |
-27.31914884 |
| 6 |
315112 |
2389 |
- |
2552 |
= |
-163 |
* |
(61 |
/ |
329)
|
= |
-30.22188444 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Deborah A. Williams Elementary
|
-102 |
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 |
9404 |
2374 |
- |
2436 |
= |
-62 |
* |
(90 |
/ |
324)
|
= |
-17.22222217 |
| 4 |
9406 |
2430 |
- |
2485 |
= |
-55 |
* |
(87 |
/ |
324)
|
= |
-14.76851849 |
| 5 |
9408 |
2418 |
- |
2528 |
= |
-110 |
* |
(81 |
/ |
324)
|
= |
-27.5 |
| 6 |
9409 |
2407 |
- |
2552 |
= |
-145 |
* |
(66 |
/ |
324)
|
= |
-29.53703694 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Deborah A. Williams Elementary
|
-89 |
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 |
9715 |
2365 |
- |
2436 |
= |
-71 |
* |
(96 |
/ |
324)
|
= |
-21.03703702 |
| 4 |
9718 |
2425 |
- |
2485 |
= |
-60 |
* |
(91 |
/ |
324)
|
= |
-16.85185182 |
| 5 |
9719 |
2457 |
- |
2528 |
= |
-71 |
* |
(73 |
/ |
324)
|
= |
-15.99691351 |
| 6 |
9721 |
2405 |
- |
2552 |
= |
-147 |
* |
(64 |
/ |
324)
|
= |
-29.03703701 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Deborah A. Williams Elementary
|
-83 |
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 |
9724 |
2361 |
- |
2436 |
= |
-75 |
* |
(91 |
/ |
347)
|
= |
-19.66858785 |
| 4 |
9726 |
2431 |
- |
2485 |
= |
-54 |
* |
(97 |
/ |
347)
|
= |
-15.09510082 |
| 5 |
9728 |
2439 |
- |
2528 |
= |
-89 |
* |
(86 |
/ |
347)
|
= |
-22.05763682 |
| 6 |
9730 |
2427 |
- |
2552 |
= |
-125 |
* |
(73 |
/ |
347)
|
= |
-26.29682988 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Deborah A. Williams Elementary
|
-83 |
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 |
9814 |
2389 |
- |
2436 |
= |
-47 |
* |
(108 |
/ |
366)
|
= |
-13.86885245 |
| 4 |
9815 |
2431 |
- |
2485 |
= |
-54 |
* |
(82 |
/ |
366)
|
= |
-12.09836061 |
| 5 |
9816 |
2459 |
- |
2528 |
= |
-69 |
* |
(100 |
/ |
366)
|
= |
-18.85245897 |
| 6 |
9817 |
2442 |
- |
2552 |
= |
-110 |
* |
(76 |
/ |
366)
|
= |
-22.84153003 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Deborah A. Williams Elementary
|
-68 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-102
|
-89
|
-83
|
-83
|
-68
|
-425.0 |
-85.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -49.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -121.0
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:
