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 |
3 |
2260991 |
2442 |
- |
2436 |
= |
6 |
* |
(45 |
/ |
130)
|
= |
2.07692308 |
4 |
2260994 |
2426 |
- |
2485 |
= |
-59 |
* |
(41 |
/ |
130)
|
= |
-18.60769229 |
5 |
2260995 |
2475 |
- |
2528 |
= |
-53 |
* |
(44 |
/ |
130)
|
= |
-17.93846151 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Ross Elementary
|
-34 |
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 |
3 |
69378 |
2428 |
- |
2436 |
= |
-8 |
* |
(39 |
/ |
121)
|
= |
-2.57851239 |
4 |
69379 |
2454 |
- |
2485 |
= |
-31 |
* |
(42 |
/ |
121)
|
= |
-10.76033058 |
5 |
69382 |
2461 |
- |
2528 |
= |
-67 |
* |
(40 |
/ |
121)
|
= |
-22.1487603 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Ross Elementary
|
-35 |
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 |
3 |
71211 |
2437 |
- |
2436 |
= |
1 |
* |
(56 |
/ |
144)
|
= |
0.38888889 |
4 |
71213 |
2420 |
- |
2485 |
= |
-65 |
* |
(45 |
/ |
144)
|
= |
-20.3125 |
5 |
71214 |
2479 |
- |
2528 |
= |
-49 |
* |
(43 |
/ |
144)
|
= |
-14.63194444 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Ross Elementary
|
-35 |
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 |
3 |
71356 |
2409 |
- |
2436 |
= |
-27 |
* |
(23 |
/ |
112)
|
= |
-5.54464283 |
4 |
71358 |
2475 |
- |
2485 |
= |
-10 |
* |
(49 |
/ |
112)
|
= |
-4.375 |
5 |
71360 |
2444 |
- |
2528 |
= |
-84 |
* |
(40 |
/ |
112)
|
= |
-29.99999999 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Ross Elementary
|
-40 |
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 |
3 |
71843 |
2466 |
- |
2436 |
= |
30 |
* |
(29 |
/ |
98)
|
= |
8.87755101 |
4 |
71844 |
2441 |
- |
2485 |
= |
-44 |
* |
(27 |
/ |
98)
|
= |
-12.12244898 |
5 |
71845 |
2492 |
- |
2528 |
= |
-36 |
* |
(42 |
/ |
98)
|
= |
-15.42857141 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Ross Elementary
|
-19 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-34
|
-35
|
-35
|
-40
|
-19
|
-163.0 |
-32.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -11.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -53.6
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: