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 |
794626 |
2424 |
- |
2552 |
= |
-128 |
* |
(400 |
/ |
1230)
|
= |
-41.62601626 |
7 |
794627 |
2406 |
- |
2567 |
= |
-161 |
* |
(355 |
/ |
1230)
|
= |
-46.46747965 |
8 |
794630 |
2461 |
- |
2586 |
= |
-125 |
* |
(475 |
/ |
1230)
|
= |
-48.27235763 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Vista Middle
|
-136 |
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 |
24834 |
2429 |
- |
2552 |
= |
-123 |
* |
(419 |
/ |
1183)
|
= |
-43.56466607 |
7 |
24836 |
2433 |
- |
2567 |
= |
-134 |
* |
(378 |
/ |
1183)
|
= |
-42.81656802 |
8 |
24838 |
2450 |
- |
2586 |
= |
-136 |
* |
(386 |
/ |
1183)
|
= |
-44.37531692 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Vista Middle
|
-131 |
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 |
25331 |
2407 |
- |
2552 |
= |
-145 |
* |
(406 |
/ |
1178)
|
= |
-49.97453304 |
7 |
25334 |
2445 |
- |
2567 |
= |
-122 |
* |
(408 |
/ |
1178)
|
= |
-42.25466889 |
8 |
25336 |
2445 |
- |
2586 |
= |
-141 |
* |
(364 |
/ |
1178)
|
= |
-43.56876058 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Vista Middle
|
-136 |
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 |
25358 |
2456 |
- |
2552 |
= |
-96 |
* |
(380 |
/ |
1141)
|
= |
-31.97195434 |
7 |
25360 |
2475 |
- |
2567 |
= |
-92 |
* |
(372 |
/ |
1141)
|
= |
-29.99474142 |
8 |
25362 |
2488 |
- |
2586 |
= |
-98 |
* |
(389 |
/ |
1141)
|
= |
-33.41104288 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Vista Middle
|
-95 |
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 |
25520 |
2468 |
- |
2552 |
= |
-84 |
* |
(395 |
/ |
1112)
|
= |
-29.83812947 |
7 |
25521 |
2493 |
- |
2567 |
= |
-74 |
* |
(354 |
/ |
1112)
|
= |
-23.5575539 |
8 |
25522 |
2478 |
- |
2586 |
= |
-108 |
* |
(363 |
/ |
1112)
|
= |
-35.25539558 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Vista Middle
|
-89 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-136
|
-131
|
-136
|
-95
|
-89
|
-587.0 |
-117.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -48.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -186.4
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: