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 |
887432 |
2392 |
- |
2436 |
= |
-44 |
* |
(108 |
/ |
307)
|
= |
-15.47882732 |
| 4 |
887435 |
2422 |
- |
2485 |
= |
-63 |
* |
(127 |
/ |
307)
|
= |
-26.0618892 |
| 5 |
887436 |
2452 |
- |
2528 |
= |
-76 |
* |
(72 |
/ |
307)
|
= |
-17.82410421 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Chase Street Elementary
|
-59 |
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 |
28060 |
2381 |
- |
2436 |
= |
-55 |
* |
(106 |
/ |
312)
|
= |
-18.6858974 |
| 4 |
28063 |
2445 |
- |
2485 |
= |
-40 |
* |
(108 |
/ |
312)
|
= |
-13.84615384 |
| 5 |
28065 |
2445 |
- |
2528 |
= |
-83 |
* |
(98 |
/ |
312)
|
= |
-26.07051281 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Chase Street Elementary
|
-59 |
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 |
28628 |
2384 |
- |
2436 |
= |
-52 |
* |
(104 |
/ |
283)
|
= |
-19.10954063 |
| 4 |
28630 |
2448 |
- |
2485 |
= |
-37 |
* |
(95 |
/ |
283)
|
= |
-12.42049467 |
| 5 |
28632 |
2444 |
- |
2528 |
= |
-84 |
* |
(84 |
/ |
283)
|
= |
-24.93286211 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Chase Street Elementary
|
-56 |
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 |
28677 |
2390 |
- |
2436 |
= |
-46 |
* |
(100 |
/ |
270)
|
= |
-17.03703702 |
| 4 |
28679 |
2444 |
- |
2485 |
= |
-41 |
* |
(97 |
/ |
270)
|
= |
-14.72962962 |
| 5 |
28681 |
2460 |
- |
2528 |
= |
-68 |
* |
(73 |
/ |
270)
|
= |
-18.38518516 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Chase Street Elementary
|
-50 |
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 |
28856 |
2424 |
- |
2436 |
= |
-12 |
* |
(82 |
/ |
250)
|
= |
-3.936 |
| 4 |
28857 |
2455 |
- |
2485 |
= |
-30 |
* |
(97 |
/ |
250)
|
= |
-11.64 |
| 5 |
28858 |
2457 |
- |
2528 |
= |
-71 |
* |
(71 |
/ |
250)
|
= |
-20.164 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Chase Street Elementary
|
-36 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-59
|
-59
|
-56
|
-50
|
-36
|
-260.0 |
-52.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -25.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -79.0
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:
