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 |
883261 |
2407 |
- |
2436 |
= |
-29 |
* |
(179 |
/ |
502)
|
= |
-10.34063745 |
| 4 |
883264 |
2449 |
- |
2485 |
= |
-36 |
* |
(164 |
/ |
502)
|
= |
-11.76095617 |
| 5 |
883265 |
2479 |
- |
2528 |
= |
-49 |
* |
(159 |
/ |
502)
|
= |
-15.51992028 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Canterbury Avenue Elementary
|
-38 |
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 |
27941 |
2411 |
- |
2436 |
= |
-25 |
* |
(160 |
/ |
485)
|
= |
-8.24742268 |
| 4 |
27942 |
2460 |
- |
2485 |
= |
-25 |
* |
(173 |
/ |
485)
|
= |
-8.91752575 |
| 5 |
27945 |
2480 |
- |
2528 |
= |
-48 |
* |
(152 |
/ |
485)
|
= |
-15.04329893 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Canterbury Avenue Elementary
|
-32 |
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 |
28508 |
2416 |
- |
2436 |
= |
-20 |
* |
(156 |
/ |
476)
|
= |
-6.55462184 |
| 4 |
28510 |
2459 |
- |
2485 |
= |
-26 |
* |
(154 |
/ |
476)
|
= |
-8.41176469 |
| 5 |
28512 |
2481 |
- |
2528 |
= |
-47 |
* |
(166 |
/ |
476)
|
= |
-16.39075627 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Canterbury Avenue Elementary
|
-31 |
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 |
28558 |
2408 |
- |
2436 |
= |
-28 |
* |
(143 |
/ |
452)
|
= |
-8.85840707 |
| 4 |
28560 |
2453 |
- |
2485 |
= |
-32 |
* |
(156 |
/ |
452)
|
= |
-11.04424778 |
| 5 |
28562 |
2481 |
- |
2528 |
= |
-47 |
* |
(153 |
/ |
452)
|
= |
-15.90929203 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Canterbury Avenue Elementary
|
-36 |
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 |
28738 |
2418 |
- |
2436 |
= |
-18 |
* |
(144 |
/ |
428)
|
= |
-6.05607476 |
| 4 |
28739 |
2461 |
- |
2485 |
= |
-24 |
* |
(138 |
/ |
428)
|
= |
-7.73831774 |
| 5 |
28740 |
2489 |
- |
2528 |
= |
-39 |
* |
(146 |
/ |
428)
|
= |
-13.30373831 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Canterbury Avenue Elementary
|
-27 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-38
|
-32
|
-31
|
-36
|
-27
|
-164.0 |
-32.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -20.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -44.8
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:
