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 |
6 |
979781 |
2465 |
- |
2552 |
= |
-87 |
* |
(258 |
/ |
859)
|
= |
-26.13038414 |
7 |
979782 |
2483 |
- |
2567 |
= |
-84 |
* |
(302 |
/ |
859)
|
= |
-29.5320139 |
8 |
979785 |
2489 |
- |
2586 |
= |
-97 |
* |
(299 |
/ |
859)
|
= |
-33.76367862 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for John Adams Middle
|
-89 |
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 |
6 |
31007 |
2457 |
- |
2552 |
= |
-95 |
* |
(267 |
/ |
824)
|
= |
-30.78276697 |
7 |
31009 |
2483 |
- |
2567 |
= |
-84 |
* |
(254 |
/ |
824)
|
= |
-25.89320387 |
8 |
31010 |
2496 |
- |
2586 |
= |
-90 |
* |
(303 |
/ |
824)
|
= |
-33.09466014 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for John Adams Middle
|
-90 |
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 |
6 |
31570 |
2462 |
- |
2552 |
= |
-90 |
* |
(262 |
/ |
806)
|
= |
-29.25558306 |
7 |
31572 |
2481 |
- |
2567 |
= |
-86 |
* |
(275 |
/ |
806)
|
= |
-29.34243168 |
8 |
31573 |
2481 |
- |
2586 |
= |
-105 |
* |
(269 |
/ |
806)
|
= |
-35.04342429 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for John Adams Middle
|
-94 |
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 |
6 |
31614 |
2461 |
- |
2552 |
= |
-91 |
* |
(278 |
/ |
817)
|
= |
-30.96450421 |
7 |
31616 |
2508 |
- |
2567 |
= |
-59 |
* |
(271 |
/ |
817)
|
= |
-19.57037941 |
8 |
31618 |
2517 |
- |
2586 |
= |
-69 |
* |
(268 |
/ |
817)
|
= |
-22.63402688 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for John Adams Middle
|
-73 |
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 |
6 |
31792 |
2475 |
- |
2552 |
= |
-77 |
* |
(302 |
/ |
870)
|
= |
-26.72873557 |
7 |
31793 |
2487 |
- |
2567 |
= |
-80 |
* |
(291 |
/ |
870)
|
= |
-26.75862064 |
8 |
31794 |
2502 |
- |
2586 |
= |
-84 |
* |
(277 |
/ |
870)
|
= |
-26.74482754 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for John Adams Middle
|
-80 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-89
|
-90
|
-94
|
-73
|
-80
|
-426.0 |
-85.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -61.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -109.2
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: