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 |
949029 |
2357 |
- |
2436 |
= |
-79 |
* |
(82 |
/ |
191)
|
= |
-33.91623031 |
| 4 |
949030 |
2424 |
- |
2485 |
= |
-61 |
* |
(47 |
/ |
191)
|
= |
-15.01047118 |
| 5 |
949032 |
2472 |
- |
2528 |
= |
-56 |
* |
(62 |
/ |
191)
|
= |
-18.17801042 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Ritter Elementary
|
-67 |
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 |
30019 |
2416 |
- |
2436 |
= |
-20 |
* |
(47 |
/ |
166)
|
= |
-5.6626506 |
| 4 |
30020 |
2393 |
- |
2485 |
= |
-92 |
* |
(74 |
/ |
166)
|
= |
-41.01204814 |
| 5 |
30022 |
2422 |
- |
2528 |
= |
-106 |
* |
(45 |
/ |
166)
|
= |
-28.73493972 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Ritter Elementary
|
-75 |
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 |
30583 |
2381 |
- |
2436 |
= |
-55 |
* |
(53 |
/ |
174)
|
= |
-16.75287356 |
| 4 |
30585 |
2463 |
- |
2485 |
= |
-22 |
* |
(49 |
/ |
174)
|
= |
-6.19540229 |
| 5 |
30588 |
2429 |
- |
2528 |
= |
-99 |
* |
(72 |
/ |
174)
|
= |
-40.9655172 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Ritter Elementary
|
-64 |
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 |
30634 |
2446 |
- |
2436 |
= |
10 |
* |
(51 |
/ |
153)
|
= |
3.33333333 |
| 4 |
30636 |
2430 |
- |
2485 |
= |
-55 |
* |
(50 |
/ |
153)
|
= |
-17.97385618 |
| 5 |
30638 |
2465 |
- |
2528 |
= |
-63 |
* |
(52 |
/ |
153)
|
= |
-21.4117647 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Ritter Elementary
|
-36 |
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 |
30810 |
2433 |
- |
2436 |
= |
-3 |
* |
(57 |
/ |
161)
|
= |
-1.0621118 |
| 4 |
30811 |
2475 |
- |
2485 |
= |
-10 |
* |
(54 |
/ |
161)
|
= |
-3.35403726 |
| 5 |
30812 |
2455 |
- |
2528 |
= |
-73 |
* |
(50 |
/ |
161)
|
= |
-22.67080744 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Ritter Elementary
|
-27 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-67
|
-75
|
-64
|
-36
|
-27
|
-269.0 |
-53.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 6.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -113.8
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:
