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 |
877822 |
2389 |
- |
2436 |
= |
-47 |
* |
(128 |
/ |
374)
|
= |
-16.08556148 |
| 4 |
877823 |
2422 |
- |
2485 |
= |
-63 |
* |
(121 |
/ |
374)
|
= |
-20.38235289 |
| 5 |
877825 |
2463 |
- |
2528 |
= |
-65 |
* |
(125 |
/ |
374)
|
= |
-21.72459887 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Broad Avenue Elementary
|
-58 |
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 |
27771 |
2409 |
- |
2436 |
= |
-27 |
* |
(106 |
/ |
352)
|
= |
-8.1306818 |
| 4 |
27773 |
2465 |
- |
2485 |
= |
-20 |
* |
(122 |
/ |
352)
|
= |
-6.93181818 |
| 5 |
27775 |
2446 |
- |
2528 |
= |
-82 |
* |
(124 |
/ |
352)
|
= |
-28.88636361 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Broad Avenue Elementary
|
-44 |
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 |
28342 |
2396 |
- |
2436 |
= |
-40 |
* |
(100 |
/ |
329)
|
= |
-12.15805468 |
| 4 |
28343 |
2456 |
- |
2485 |
= |
-29 |
* |
(109 |
/ |
329)
|
= |
-9.60790271 |
| 5 |
28345 |
2451 |
- |
2528 |
= |
-77 |
* |
(120 |
/ |
329)
|
= |
-28.08510636 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Broad Avenue Elementary
|
-50 |
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 |
28393 |
2428 |
- |
2436 |
= |
-8 |
* |
(96 |
/ |
312)
|
= |
-2.46153846 |
| 4 |
28394 |
2473 |
- |
2485 |
= |
-12 |
* |
(104 |
/ |
312)
|
= |
-4.0 |
| 5 |
28397 |
2443 |
- |
2528 |
= |
-85 |
* |
(112 |
/ |
312)
|
= |
-30.51282043 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Broad Avenue Elementary
|
-37 |
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 |
28572 |
2417 |
- |
2436 |
= |
-19 |
* |
(82 |
/ |
275)
|
= |
-5.66545454 |
| 4 |
28573 |
2492 |
- |
2485 |
= |
7 |
* |
(93 |
/ |
275)
|
= |
2.36727273 |
| 5 |
28574 |
2444 |
- |
2528 |
= |
-84 |
* |
(100 |
/ |
275)
|
= |
-30.54545449 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Broad Avenue Elementary
|
-34 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-58
|
-44
|
-50
|
-37
|
-34
|
-223.0 |
-44.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -17.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -71.6
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:
