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 |
333531 |
2374 |
- |
2436 |
= |
-62 |
* |
(67 |
/ |
210)
|
= |
-19.78095238 |
| 4 |
333532 |
2412 |
- |
2485 |
= |
-73 |
* |
(40 |
/ |
210)
|
= |
-13.90476187 |
| 5 |
333535 |
2459 |
- |
2528 |
= |
-69 |
* |
(53 |
/ |
210)
|
= |
-17.41428569 |
| 6 |
333536 |
2469 |
- |
2552 |
= |
-83 |
* |
(50 |
/ |
210)
|
= |
-19.76190475 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Webster Elementary
|
-71 |
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 |
9949 |
2380 |
- |
2436 |
= |
-56 |
* |
(54 |
/ |
207)
|
= |
-14.60869564 |
| 4 |
9951 |
2432 |
- |
2485 |
= |
-53 |
* |
(54 |
/ |
207)
|
= |
-13.82608695 |
| 5 |
9953 |
2486 |
- |
2528 |
= |
-42 |
* |
(44 |
/ |
207)
|
= |
-8.92753621 |
| 6 |
9955 |
2466 |
- |
2552 |
= |
-86 |
* |
(55 |
/ |
207)
|
= |
-22.85024154 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Webster Elementary
|
-60 |
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 |
10278 |
2404 |
- |
2436 |
= |
-32 |
* |
(48 |
/ |
198)
|
= |
-7.75757574 |
| 4 |
10280 |
2429 |
- |
2485 |
= |
-56 |
* |
(51 |
/ |
198)
|
= |
-14.42424239 |
| 5 |
10281 |
2484 |
- |
2528 |
= |
-44 |
* |
(55 |
/ |
198)
|
= |
-12.22222219 |
| 6 |
10284 |
2488 |
- |
2552 |
= |
-64 |
* |
(44 |
/ |
198)
|
= |
-14.22222221 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Webster Elementary
|
-49 |
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 |
10295 |
2427 |
- |
2436 |
= |
-9 |
* |
(62 |
/ |
202)
|
= |
-2.76237624 |
| 4 |
10298 |
2468 |
- |
2485 |
= |
-17 |
* |
(44 |
/ |
202)
|
= |
-3.70297029 |
| 5 |
10299 |
2500 |
- |
2528 |
= |
-28 |
* |
(48 |
/ |
202)
|
= |
-6.65346534 |
| 6 |
10302 |
2538 |
- |
2552 |
= |
-14 |
* |
(48 |
/ |
202)
|
= |
-3.32673267 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Webster Elementary
|
-16 |
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 |
10376 |
2409 |
- |
2436 |
= |
-27 |
* |
(59 |
/ |
214)
|
= |
-7.44392522 |
| 4 |
10377 |
2449 |
- |
2485 |
= |
-36 |
* |
(61 |
/ |
214)
|
= |
-10.26168221 |
| 5 |
10378 |
2514 |
- |
2528 |
= |
-14 |
* |
(47 |
/ |
214)
|
= |
-3.07476635 |
| 6 |
10379 |
2505 |
- |
2552 |
= |
-47 |
* |
(47 |
/ |
214)
|
= |
-10.3224299 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Webster Elementary
|
-31 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-71
|
-60
|
-49
|
-16
|
-31
|
-227.0 |
-45.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 20.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -111.4
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:
