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 |
879360 |
2379 |
- |
2436 |
= |
-57 |
* |
(75 |
/ |
278)
|
= |
-15.3776978 |
| 4 |
879361 |
2416 |
- |
2485 |
= |
-69 |
* |
(82 |
/ |
278)
|
= |
-20.35251793 |
| 5 |
879364 |
2431 |
- |
2528 |
= |
-97 |
* |
(86 |
/ |
278)
|
= |
-30.00719415 |
| 6 |
879365 |
2431 |
- |
2552 |
= |
-121 |
* |
(35 |
/ |
278)
|
= |
-15.23381288 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Buchanan Street Elementary
|
-81 |
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 |
27825 |
2392 |
- |
2436 |
= |
-44 |
* |
(67 |
/ |
255)
|
= |
-11.56078431 |
| 4 |
27826 |
2418 |
- |
2485 |
= |
-67 |
* |
(73 |
/ |
255)
|
= |
-19.1803921 |
| 5 |
27828 |
2466 |
- |
2528 |
= |
-62 |
* |
(69 |
/ |
255)
|
= |
-16.77647057 |
| 6 |
27831 |
2422 |
- |
2552 |
= |
-130 |
* |
(46 |
/ |
255)
|
= |
-23.45098028 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Buchanan Street Elementary
|
-71 |
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 |
28396 |
2393 |
- |
2436 |
= |
-43 |
* |
(66 |
/ |
197)
|
= |
-14.40609134 |
| 4 |
28397 |
2411 |
- |
2485 |
= |
-74 |
* |
(62 |
/ |
197)
|
= |
-23.28934009 |
| 5 |
28400 |
2442 |
- |
2528 |
= |
-86 |
* |
(69 |
/ |
197)
|
= |
-30.1218274 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Buchanan Street Elementary
|
-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 |
28447 |
2411 |
- |
2436 |
= |
-25 |
* |
(49 |
/ |
176)
|
= |
-6.96022725 |
| 4 |
28448 |
2448 |
- |
2485 |
= |
-37 |
* |
(67 |
/ |
176)
|
= |
-14.08522727 |
| 5 |
28451 |
2460 |
- |
2528 |
= |
-68 |
* |
(60 |
/ |
176)
|
= |
-23.18181812 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Buchanan Street Elementary
|
-44 |
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 |
28626 |
2425 |
- |
2436 |
= |
-11 |
* |
(63 |
/ |
171)
|
= |
-4.05263157 |
| 4 |
28627 |
2444 |
- |
2485 |
= |
-41 |
* |
(46 |
/ |
171)
|
= |
-11.02923973 |
| 5 |
28628 |
2465 |
- |
2528 |
= |
-63 |
* |
(62 |
/ |
171)
|
= |
-22.84210524 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Buchanan Street Elementary
|
-38 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-81
|
-71
|
-68
|
-44
|
-38
|
-302.0 |
-60.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -6.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -114.4
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:
