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 |
991940 |
2446 |
- |
2552 |
= |
-106 |
* |
(363 |
/ |
1554)
|
= |
-24.7606177 |
7 |
991943 |
2474 |
- |
2567 |
= |
-93 |
* |
(613 |
/ |
1554)
|
= |
-36.68532814 |
8 |
991944 |
2479 |
- |
2586 |
= |
-107 |
* |
(578 |
/ |
1554)
|
= |
-39.7979407 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Robert Louis Stevenson College and Career Preparatory
|
-101 |
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 |
31334 |
2449 |
- |
2552 |
= |
-103 |
* |
(402 |
/ |
1475)
|
= |
-28.07186432 |
7 |
31337 |
2474 |
- |
2567 |
= |
-93 |
* |
(449 |
/ |
1475)
|
= |
-28.30983045 |
8 |
31339 |
2489 |
- |
2586 |
= |
-97 |
* |
(624 |
/ |
1475)
|
= |
-41.03593216 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Robert Louis Stevenson College and Career Preparatory
|
-97 |
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 |
31895 |
2452 |
- |
2552 |
= |
-100 |
* |
(363 |
/ |
1260)
|
= |
-28.8095238 |
7 |
31897 |
2478 |
- |
2567 |
= |
-89 |
* |
(463 |
/ |
1260)
|
= |
-32.70396821 |
8 |
31899 |
2486 |
- |
2586 |
= |
-100 |
* |
(434 |
/ |
1260)
|
= |
-34.4444444 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Robert Louis Stevenson College and Career Preparatory
|
-96 |
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 |
31932 |
2463 |
- |
2552 |
= |
-89 |
* |
(329 |
/ |
1180)
|
= |
-24.81440675 |
7 |
31934 |
2476 |
- |
2567 |
= |
-91 |
* |
(405 |
/ |
1180)
|
= |
-31.23305076 |
8 |
31936 |
2468 |
- |
2586 |
= |
-118 |
* |
(446 |
/ |
1180)
|
= |
-44.59999992 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Robert Louis Stevenson College and Career Preparatory
|
-101 |
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 |
32110 |
2461 |
- |
2552 |
= |
-91 |
* |
(324 |
/ |
1114)
|
= |
-26.46678635 |
7 |
32111 |
2480 |
- |
2567 |
= |
-87 |
* |
(399 |
/ |
1114)
|
= |
-31.16068221 |
8 |
32112 |
2485 |
- |
2586 |
= |
-101 |
* |
(391 |
/ |
1114)
|
= |
-35.44973063 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Robert Louis Stevenson College and Career Preparatory
|
-93 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-101
|
-97
|
-96
|
-101
|
-93
|
-488.0 |
-97.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -88.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -106.6
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: