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 |
5 |
74430 |
2576 |
- |
2528 |
= |
48 |
* |
(60 |
/ |
239) |
= |
12.0502092 |
6 |
74431 |
2599 |
- |
2552 |
= |
47 |
* |
(60 |
/ |
239) |
= |
11.79916318 |
7 |
74432 |
2639 |
- |
2567 |
= |
72 |
* |
(59 |
/ |
239) |
= |
17.77405853 |
8 |
74433 |
2631 |
- |
2586 |
= |
45 |
* |
(60 |
/ |
239) |
= |
11.29707113 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for SBE - College Preparatory Middle
|
53 |
Last steps
Compute the average
2019 |
Sum |
Average |
53
|
53.0 |
53.0 |
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.