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 |
923814 |
2378 |
- |
2436 |
= |
-58 |
* |
(125 |
/ |
386)
|
= |
-18.78238337 |
| 4 |
923815 |
2412 |
- |
2485 |
= |
-73 |
* |
(128 |
/ |
386)
|
= |
-24.20725384 |
| 5 |
923818 |
2457 |
- |
2528 |
= |
-71 |
* |
(133 |
/ |
386)
|
= |
-24.46373054 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Limerick Avenue Elementary
|
-67 |
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 |
29205 |
2394 |
- |
2436 |
= |
-42 |
* |
(142 |
/ |
389)
|
= |
-15.33161952 |
| 4 |
29207 |
2433 |
- |
2485 |
= |
-52 |
* |
(131 |
/ |
389)
|
= |
-17.5115681 |
| 5 |
29208 |
2462 |
- |
2528 |
= |
-66 |
* |
(116 |
/ |
389)
|
= |
-19.68123392 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Limerick Avenue Elementary
|
-53 |
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 |
29769 |
2395 |
- |
2436 |
= |
-41 |
* |
(146 |
/ |
414)
|
= |
-14.45893716 |
| 4 |
29771 |
2423 |
- |
2485 |
= |
-62 |
* |
(145 |
/ |
414)
|
= |
-21.71497579 |
| 5 |
29773 |
2466 |
- |
2528 |
= |
-62 |
* |
(123 |
/ |
414)
|
= |
-18.42028984 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Limerick Avenue Elementary
|
-55 |
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 |
29819 |
2403 |
- |
2436 |
= |
-33 |
* |
(129 |
/ |
417)
|
= |
-10.20863306 |
| 4 |
29820 |
2428 |
- |
2485 |
= |
-57 |
* |
(147 |
/ |
417)
|
= |
-20.09352515 |
| 5 |
29823 |
2462 |
- |
2528 |
= |
-66 |
* |
(141 |
/ |
417)
|
= |
-22.31654674 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Limerick Avenue Elementary
|
-53 |
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 |
29994 |
2391 |
- |
2436 |
= |
-45 |
* |
(125 |
/ |
390)
|
= |
-14.4230769 |
| 4 |
29995 |
2422 |
- |
2485 |
= |
-63 |
* |
(127 |
/ |
390)
|
= |
-20.51538458 |
| 5 |
29996 |
2464 |
- |
2528 |
= |
-64 |
* |
(138 |
/ |
390)
|
= |
-22.64615379 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Limerick Avenue Elementary
|
-58 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-67
|
-53
|
-55
|
-53
|
-58
|
-286.0 |
-57.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -42.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -72.2
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:
