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 |
998575 |
2461 |
- |
2552 |
= |
-91 |
* |
(498 |
/ |
1550)
|
= |
-29.2374193 |
7 |
998576 |
2496 |
- |
2567 |
= |
-71 |
* |
(521 |
/ |
1550)
|
= |
-23.86516127 |
8 |
998579 |
2510 |
- |
2586 |
= |
-76 |
* |
(531 |
/ |
1550)
|
= |
-26.03612902 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for James Madison Middle
|
-79 |
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 |
31520 |
2477 |
- |
2552 |
= |
-75 |
* |
(521 |
/ |
1566)
|
= |
-24.95210723 |
7 |
31522 |
2493 |
- |
2567 |
= |
-74 |
* |
(515 |
/ |
1566)
|
= |
-24.3358876 |
8 |
31525 |
2514 |
- |
2586 |
= |
-72 |
* |
(530 |
/ |
1566)
|
= |
-24.36781608 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for James Madison Middle
|
-74 |
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 |
32074 |
2475 |
- |
2552 |
= |
-77 |
* |
(556 |
/ |
1613)
|
= |
-26.54184749 |
7 |
32075 |
2498 |
- |
2567 |
= |
-69 |
* |
(530 |
/ |
1613)
|
= |
-22.67203967 |
8 |
32078 |
2500 |
- |
2586 |
= |
-86 |
* |
(527 |
/ |
1613)
|
= |
-28.09795406 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for James Madison Middle
|
-77 |
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 |
32101 |
2481 |
- |
2552 |
= |
-71 |
* |
(565 |
/ |
1655)
|
= |
-24.23867069 |
7 |
32103 |
2492 |
- |
2567 |
= |
-75 |
* |
(558 |
/ |
1655)
|
= |
-25.287009 |
8 |
32105 |
2509 |
- |
2586 |
= |
-77 |
* |
(532 |
/ |
1655)
|
= |
-24.75166163 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for James Madison Middle
|
-74 |
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 |
32282 |
2476 |
- |
2552 |
= |
-76 |
* |
(527 |
/ |
1645)
|
= |
-24.34772032 |
7 |
32283 |
2499 |
- |
2567 |
= |
-68 |
* |
(549 |
/ |
1645)
|
= |
-22.69422487 |
8 |
32284 |
2504 |
- |
2586 |
= |
-82 |
* |
(569 |
/ |
1645)
|
= |
-28.36352579 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for James Madison Middle
|
-75 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-79
|
-74
|
-77
|
-74
|
-75
|
-379.0 |
-75.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -69.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -81.8
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: