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 |
877630 |
2363 |
- |
2436 |
= |
-73 |
* |
(47 |
/ |
130)
|
= |
-26.39230765 |
| 4 |
877631 |
2362 |
- |
2485 |
= |
-123 |
* |
(41 |
/ |
130)
|
= |
-38.79230765 |
| 5 |
877634 |
2403 |
- |
2528 |
= |
-125 |
* |
(42 |
/ |
130)
|
= |
-40.38461538 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Bridge Street Elementary
|
-106 |
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 |
27763 |
2376 |
- |
2436 |
= |
-60 |
* |
(42 |
/ |
132)
|
= |
-19.09090908 |
| 4 |
27764 |
2407 |
- |
2485 |
= |
-78 |
* |
(45 |
/ |
132)
|
= |
-26.59090902 |
| 5 |
27767 |
2404 |
- |
2528 |
= |
-124 |
* |
(45 |
/ |
132)
|
= |
-42.27272716 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Bridge Street Elementary
|
-88 |
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 |
28333 |
2378 |
- |
2436 |
= |
-58 |
* |
(39 |
/ |
124)
|
= |
-18.24193548 |
| 4 |
28336 |
2412 |
- |
2485 |
= |
-73 |
* |
(43 |
/ |
124)
|
= |
-25.31451609 |
| 5 |
28338 |
2432 |
- |
2528 |
= |
-96 |
* |
(42 |
/ |
124)
|
= |
-32.51612899 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Bridge 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 |
28385 |
2403 |
- |
2436 |
= |
-33 |
* |
(24 |
/ |
101)
|
= |
-7.84158415 |
| 4 |
28386 |
2430 |
- |
2485 |
= |
-55 |
* |
(38 |
/ |
101)
|
= |
-20.69306927 |
| 5 |
28389 |
2437 |
- |
2528 |
= |
-91 |
* |
(39 |
/ |
101)
|
= |
-35.13861378 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Bridge Street Elementary
|
-64 |
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 |
28564 |
2385 |
- |
2436 |
= |
-51 |
* |
(27 |
/ |
88)
|
= |
-15.64772723 |
| 4 |
28565 |
2425 |
- |
2485 |
= |
-60 |
* |
(25 |
/ |
88)
|
= |
-17.04545454 |
| 5 |
28566 |
2446 |
- |
2528 |
= |
-82 |
* |
(36 |
/ |
88)
|
= |
-33.54545454 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Bridge Street Elementary
|
-66 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-106
|
-88
|
-76
|
-64
|
-66
|
-400.0 |
-80.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -29.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -131.0
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:
