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 |
69270 |
2491 |
- |
2436 |
= |
55 |
* |
(38 |
/ |
260)
|
= |
8.03846153 |
| 4 |
69271 |
2511 |
- |
2485 |
= |
26 |
* |
(26 |
/ |
260)
|
= |
2.6 |
| 5 |
69272 |
2562 |
- |
2528 |
= |
34 |
* |
(45 |
/ |
260)
|
= |
5.88461538 |
| 6 |
69273 |
2593 |
- |
2552 |
= |
41 |
* |
(51 |
/ |
260)
|
= |
8.04230769 |
| 7 |
69274 |
2609 |
- |
2567 |
= |
42 |
* |
(51 |
/ |
260)
|
= |
8.23846153 |
| 8 |
69275 |
2638 |
- |
2586 |
= |
52 |
* |
(49 |
/ |
260)
|
= |
9.79999998 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for JCS - Mountain Oaks
|
43 |
Last steps
Compute the average
| 2019 |
Sum |
Average |
|
43
|
43.0 |
43.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average:
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average:
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: