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 |
993128 |
2432 |
- |
2552 |
= |
-120 |
* |
(137 |
/ |
450)
|
= |
-36.53333328 |
7 |
993131 |
2463 |
- |
2567 |
= |
-104 |
* |
(141 |
/ |
450)
|
= |
-32.58666663 |
8 |
993132 |
2449 |
- |
2586 |
= |
-137 |
* |
(172 |
/ |
450)
|
= |
-52.36444441 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Daniel Webster Middle
|
-121 |
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 |
31367 |
2458 |
- |
2552 |
= |
-94 |
* |
(128 |
/ |
434)
|
= |
-27.72350225 |
7 |
31369 |
2460 |
- |
2567 |
= |
-107 |
* |
(151 |
/ |
434)
|
= |
-37.22811057 |
8 |
31371 |
2467 |
- |
2586 |
= |
-119 |
* |
(155 |
/ |
434)
|
= |
-42.49999998 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Daniel Webster Middle
|
-107 |
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 |
31927 |
2448 |
- |
2552 |
= |
-104 |
* |
(129 |
/ |
409)
|
= |
-32.80195589 |
7 |
31929 |
2470 |
- |
2567 |
= |
-97 |
* |
(136 |
/ |
409)
|
= |
-32.25427869 |
8 |
31932 |
2462 |
- |
2586 |
= |
-124 |
* |
(144 |
/ |
409)
|
= |
-43.65770164 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Daniel Webster Middle
|
-109 |
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 |
31965 |
2470 |
- |
2552 |
= |
-82 |
* |
(155 |
/ |
434)
|
= |
-29.28571427 |
7 |
31967 |
2487 |
- |
2567 |
= |
-80 |
* |
(142 |
/ |
434)
|
= |
-26.1751152 |
8 |
31969 |
2496 |
- |
2586 |
= |
-90 |
* |
(137 |
/ |
434)
|
= |
-28.41013818 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Daniel Webster Middle
|
-84 |
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 |
32142 |
2474 |
- |
2552 |
= |
-78 |
* |
(167 |
/ |
492)
|
= |
-26.47560973 |
7 |
32143 |
2497 |
- |
2567 |
= |
-70 |
* |
(166 |
/ |
492)
|
= |
-23.61788611 |
8 |
32144 |
2484 |
- |
2586 |
= |
-102 |
* |
(159 |
/ |
492)
|
= |
-32.96341456 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Daniel Webster Middle
|
-83 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-121
|
-107
|
-109
|
-84
|
-83
|
-504.0 |
-100.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -52.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -148.8
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: