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 |
955431 |
2394 |
- |
2436 |
= |
-42 |
* |
(127 |
/ |
382)
|
= |
-13.96335074 |
| 4 |
955432 |
2434 |
- |
2485 |
= |
-51 |
* |
(124 |
/ |
382)
|
= |
-16.55497378 |
| 5 |
955435 |
2422 |
- |
2528 |
= |
-106 |
* |
(131 |
/ |
382)
|
= |
-36.35078532 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sharp 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 |
30226 |
2424 |
- |
2436 |
= |
-12 |
* |
(103 |
/ |
347)
|
= |
-3.56195965 |
| 4 |
30229 |
2428 |
- |
2485 |
= |
-57 |
* |
(115 |
/ |
347)
|
= |
-18.89048987 |
| 5 |
30231 |
2420 |
- |
2528 |
= |
-108 |
* |
(129 |
/ |
347)
|
= |
-40.1498559 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sharp Avenue Elementary
|
-63 |
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 |
30791 |
2409 |
- |
2436 |
= |
-27 |
* |
(112 |
/ |
318)
|
= |
-9.50943394 |
| 4 |
30794 |
2437 |
- |
2485 |
= |
-48 |
* |
(102 |
/ |
318)
|
= |
-15.39622637 |
| 5 |
30795 |
2418 |
- |
2528 |
= |
-110 |
* |
(104 |
/ |
318)
|
= |
-35.97484275 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sharp Avenue Elementary
|
-61 |
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 |
30839 |
2422 |
- |
2436 |
= |
-14 |
* |
(121 |
/ |
336)
|
= |
-5.04166666 |
| 4 |
30841 |
2418 |
- |
2485 |
= |
-67 |
* |
(114 |
/ |
336)
|
= |
-22.73214284 |
| 5 |
30842 |
2419 |
- |
2528 |
= |
-109 |
* |
(101 |
/ |
336)
|
= |
-32.76488094 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sharp Avenue Elementary
|
-61 |
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 |
31014 |
2414 |
- |
2436 |
= |
-22 |
* |
(98 |
/ |
328)
|
= |
-6.57317071 |
| 4 |
31015 |
2417 |
- |
2485 |
= |
-68 |
* |
(118 |
/ |
328)
|
= |
-24.4634146 |
| 5 |
31016 |
2421 |
- |
2528 |
= |
-107 |
* |
(112 |
/ |
328)
|
= |
-36.5365853 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sharp Avenue Elementary
|
-68 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-67
|
-63
|
-61
|
-61
|
-68
|
-320.0 |
-64.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -55.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -73.0
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:
