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 |
1004914 |
2389 |
- |
2436 |
= |
-47 |
* |
(39 |
/ |
114)
|
= |
-16.07894736 |
| 4 |
1004915 |
2434 |
- |
2485 |
= |
-51 |
* |
(41 |
/ |
114)
|
= |
-18.34210522 |
| 5 |
1004918 |
2458 |
- |
2528 |
= |
-70 |
* |
(34 |
/ |
114)
|
= |
-20.87719298 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Ninth Street Elementary
|
-55 |
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 |
31703 |
2405 |
- |
2436 |
= |
-31 |
* |
(52 |
/ |
150)
|
= |
-10.74666665 |
| 4 |
31705 |
2439 |
- |
2485 |
= |
-46 |
* |
(49 |
/ |
150)
|
= |
-15.02666664 |
| 5 |
31706 |
2443 |
- |
2528 |
= |
-85 |
* |
(49 |
/ |
150)
|
= |
-27.76666661 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Ninth Street Elementary
|
-54 |
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 |
32255 |
2411 |
- |
2436 |
= |
-25 |
* |
(41 |
/ |
145)
|
= |
-7.0689655 |
| 4 |
32257 |
2420 |
- |
2485 |
= |
-65 |
* |
(55 |
/ |
145)
|
= |
-24.65517236 |
| 5 |
32259 |
2396 |
- |
2528 |
= |
-132 |
* |
(49 |
/ |
145)
|
= |
-44.60689649 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Ninth Street Elementary
|
-76 |
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 |
32283 |
2399 |
- |
2436 |
= |
-37 |
* |
(59 |
/ |
155)
|
= |
-14.08387096 |
| 4 |
32285 |
2436 |
- |
2485 |
= |
-49 |
* |
(41 |
/ |
155)
|
= |
-12.96129032 |
| 5 |
32287 |
2436 |
- |
2528 |
= |
-92 |
* |
(55 |
/ |
155)
|
= |
-32.64516123 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Ninth Street Elementary
|
-60 |
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 |
32464 |
2410 |
- |
2436 |
= |
-26 |
* |
(63 |
/ |
161)
|
= |
-10.17391302 |
| 4 |
32465 |
2440 |
- |
2485 |
= |
-45 |
* |
(57 |
/ |
161)
|
= |
-15.93167702 |
| 5 |
32466 |
2472 |
- |
2528 |
= |
-56 |
* |
(41 |
/ |
161)
|
= |
-14.26086956 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Ninth Street Elementary
|
-40 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-55
|
-54
|
-76
|
-60
|
-40
|
-285.0 |
-57.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -21.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.0
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:
