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 |
879135 |
2426 |
- |
2436 |
= |
-10 |
* |
(129 |
/ |
413)
|
= |
-3.12348668 |
| 4 |
879138 |
2482 |
- |
2485 |
= |
-3 |
* |
(138 |
/ |
413)
|
= |
-1.00242131 |
| 5 |
879139 |
2479 |
- |
2528 |
= |
-49 |
* |
(146 |
/ |
413)
|
= |
-17.32203386 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Bryson Avenue Elementary
|
-21 |
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 |
27817 |
2425 |
- |
2436 |
= |
-11 |
* |
(126 |
/ |
389)
|
= |
-3.56298201 |
| 4 |
27818 |
2483 |
- |
2485 |
= |
-2 |
* |
(126 |
/ |
389)
|
= |
-0.64781491 |
| 5 |
27821 |
2507 |
- |
2528 |
= |
-21 |
* |
(137 |
/ |
389)
|
= |
-7.39588687 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Bryson Avenue Elementary
|
-12 |
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 |
28387 |
2441 |
- |
2436 |
= |
5 |
* |
(143 |
/ |
397)
|
= |
1.80100756 |
| 4 |
28390 |
2469 |
- |
2485 |
= |
-16 |
* |
(128 |
/ |
397)
|
= |
-5.15869018 |
| 5 |
28391 |
2481 |
- |
2528 |
= |
-47 |
* |
(126 |
/ |
397)
|
= |
-14.91687654 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Bryson Avenue Elementary
|
-18 |
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 |
28438 |
2462 |
- |
2436 |
= |
26 |
* |
(114 |
/ |
368)
|
= |
8.05434781 |
| 4 |
28440 |
2503 |
- |
2485 |
= |
18 |
* |
(139 |
/ |
368)
|
= |
6.79891304 |
| 5 |
28442 |
2494 |
- |
2528 |
= |
-34 |
* |
(115 |
/ |
368)
|
= |
-10.625 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Bryson Avenue Elementary
|
4 |
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 |
28618 |
2457 |
- |
2436 |
= |
21 |
* |
(127 |
/ |
385)
|
= |
6.92727271 |
| 4 |
28619 |
2494 |
- |
2485 |
= |
9 |
* |
(116 |
/ |
385)
|
= |
2.71168831 |
| 5 |
28620 |
2503 |
- |
2528 |
= |
-25 |
* |
(142 |
/ |
385)
|
= |
-9.2207792 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Bryson Avenue Elementary
|
0 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-21
|
-12
|
-18
|
4
|
0
|
-47.0 |
-9.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 21.25
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -44.75
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:
