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 |
881010 |
2454 |
- |
2436 |
= |
18 |
* |
(88 |
/ |
244)
|
= |
6.49180327 |
4 |
881011 |
2471 |
- |
2485 |
= |
-14 |
* |
(74 |
/ |
244)
|
= |
-4.24590163 |
5 |
881014 |
2506 |
- |
2528 |
= |
-22 |
* |
(82 |
/ |
244)
|
= |
-7.39344261 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Cahuenga Elementary
|
-5 |
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 |
27877 |
2467 |
- |
2436 |
= |
31 |
* |
(105 |
/ |
250)
|
= |
13.02 |
4 |
27878 |
2483 |
- |
2485 |
= |
-2 |
* |
(76 |
/ |
250)
|
= |
-0.608 |
5 |
27881 |
2506 |
- |
2528 |
= |
-22 |
* |
(69 |
/ |
250)
|
= |
-6.072 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Cahuenga Elementary
|
6 |
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 |
28444 |
2479 |
- |
2436 |
= |
43 |
* |
(91 |
/ |
249)
|
= |
15.71485942 |
4 |
28445 |
2495 |
- |
2485 |
= |
10 |
* |
(85 |
/ |
249)
|
= |
3.41365461 |
5 |
28447 |
2512 |
- |
2528 |
= |
-16 |
* |
(73 |
/ |
249)
|
= |
-4.69076304 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Cahuenga Elementary
|
14 |
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 |
28494 |
2461 |
- |
2436 |
= |
25 |
* |
(68 |
/ |
225)
|
= |
7.55555555 |
4 |
28496 |
2490 |
- |
2485 |
= |
5 |
* |
(80 |
/ |
225)
|
= |
1.77777778 |
5 |
28498 |
2528 |
- |
2528 |
= |
0 |
* |
(77 |
/ |
225)
|
= |
0.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Cahuenga Elementary
|
9 |
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 |
28674 |
2457 |
- |
2436 |
= |
21 |
* |
(67 |
/ |
215)
|
= |
6.54418603 |
4 |
28675 |
2492 |
- |
2485 |
= |
7 |
* |
(67 |
/ |
215)
|
= |
2.18139534 |
5 |
28676 |
2502 |
- |
2528 |
= |
-26 |
* |
(81 |
/ |
215)
|
= |
-9.79534884 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Cahuenga Elementary
|
-1 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-5
|
6
|
14
|
9
|
-1
|
23.0 |
4.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 25.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -16.4
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: