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 |
971895 |
2419 |
- |
2436 |
= |
-17 |
* |
(85 |
/ |
245)
|
= |
-5.89795918 |
| 4 |
971896 |
2428 |
- |
2485 |
= |
-57 |
* |
(82 |
/ |
245)
|
= |
-19.07755099 |
| 5 |
971899 |
2480 |
- |
2528 |
= |
-48 |
* |
(78 |
/ |
245)
|
= |
-15.28163261 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Victoria Avenue Elementary
|
-40 |
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 |
30752 |
2399 |
- |
2436 |
= |
-37 |
* |
(69 |
/ |
221)
|
= |
-11.55203618 |
| 4 |
30754 |
2465 |
- |
2485 |
= |
-20 |
* |
(76 |
/ |
221)
|
= |
-6.87782804 |
| 5 |
30757 |
2486 |
- |
2528 |
= |
-42 |
* |
(76 |
/ |
221)
|
= |
-14.44343888 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Victoria Avenue Elementary
|
-33 |
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 |
31318 |
2451 |
- |
2436 |
= |
15 |
* |
(78 |
/ |
218)
|
= |
5.36697248 |
| 4 |
31320 |
2414 |
- |
2485 |
= |
-71 |
* |
(64 |
/ |
218)
|
= |
-20.84403665 |
| 5 |
31321 |
2518 |
- |
2528 |
= |
-10 |
* |
(76 |
/ |
218)
|
= |
-3.48623853 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Victoria Avenue Elementary
|
-19 |
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 |
31365 |
2480 |
- |
2436 |
= |
44 |
* |
(67 |
/ |
207)
|
= |
14.24154587 |
| 4 |
31367 |
2465 |
- |
2485 |
= |
-20 |
* |
(77 |
/ |
207)
|
= |
-7.43961352 |
| 5 |
31369 |
2475 |
- |
2528 |
= |
-53 |
* |
(63 |
/ |
207)
|
= |
-16.13043478 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Victoria Avenue Elementary
|
-9 |
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 |
31540 |
2442 |
- |
2436 |
= |
6 |
* |
(61 |
/ |
202)
|
= |
1.81188119 |
| 4 |
31541 |
2488 |
- |
2485 |
= |
3 |
* |
(60 |
/ |
202)
|
= |
0.89108911 |
| 5 |
31542 |
2517 |
- |
2528 |
= |
-11 |
* |
(81 |
/ |
202)
|
= |
-4.41089109 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Victoria Avenue Elementary
|
-2 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-40
|
-33
|
-19
|
-9
|
-2
|
-103.0 |
-20.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 24.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -65.6
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:
