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 |
941769 |
2496 |
- |
2436 |
= |
60 |
* |
(87 |
/ |
237)
|
= |
22.02531642 |
| 4 |
941770 |
2524 |
- |
2485 |
= |
39 |
* |
(70 |
/ |
237)
|
= |
11.51898731 |
| 5 |
941773 |
2569 |
- |
2528 |
= |
41 |
* |
(80 |
/ |
237)
|
= |
13.83966242 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Overland Avenue Elementary
|
47 |
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 |
29797 |
2502 |
- |
2436 |
= |
66 |
* |
(84 |
/ |
235)
|
= |
23.59148933 |
| 4 |
29798 |
2551 |
- |
2485 |
= |
66 |
* |
(81 |
/ |
235)
|
= |
22.74893617 |
| 5 |
29800 |
2589 |
- |
2528 |
= |
61 |
* |
(70 |
/ |
235)
|
= |
18.17021274 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Overland Avenue Elementary
|
65 |
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 |
30362 |
2490 |
- |
2436 |
= |
54 |
* |
(75 |
/ |
227)
|
= |
17.84140965 |
| 4 |
30363 |
2539 |
- |
2485 |
= |
54 |
* |
(79 |
/ |
227)
|
= |
18.79295153 |
| 5 |
30366 |
2600 |
- |
2528 |
= |
72 |
* |
(73 |
/ |
227)
|
= |
23.15418502 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Overland Avenue Elementary
|
60 |
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 |
30413 |
2497 |
- |
2436 |
= |
61 |
* |
(70 |
/ |
216)
|
= |
19.76851851 |
| 4 |
30414 |
2551 |
- |
2485 |
= |
66 |
* |
(71 |
/ |
216)
|
= |
21.6944444 |
| 5 |
30417 |
2590 |
- |
2528 |
= |
62 |
* |
(75 |
/ |
216)
|
= |
21.52777776 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Overland Avenue Elementary
|
63 |
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 |
30586 |
2501 |
- |
2436 |
= |
65 |
* |
(78 |
/ |
212)
|
= |
23.91509432 |
| 4 |
30587 |
2551 |
- |
2485 |
= |
66 |
* |
(64 |
/ |
212)
|
= |
19.92452827 |
| 5 |
30588 |
2597 |
- |
2528 |
= |
69 |
* |
(70 |
/ |
212)
|
= |
22.78301885 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Overland Avenue Elementary
|
67 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
47
|
65
|
60
|
63
|
67
|
302.0 |
60.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 81.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 39.4
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:
