IDEA Center (Data source)
Source data for IDEA Center
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 |
||
| 11 | 66614 | 2490 | - | 2628 | = | -138 | * | (50 | / | 50) | = | -138.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for IDEA Center | -138 | ||||||||||||
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 |
||
| 11 | 68444 | 2501 | - | 2628 | = | -127 | * | (52 | / | 52) | = | -127.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for IDEA Center | -127 | ||||||||||||
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 |
||
| 11 | 68593 | 2465 | - | 2628 | = | -163 | * | (33 | / | 33) | = | -163.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for IDEA Center | -163 | ||||||||||||
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 |
||
| 11 | 69111 | 2493 | - | 2628 | = | -135 | * | (62 | / | 62) | = | -135.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for IDEA Center | -135 | ||||||||||||
Last steps
Compute the average
| 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|
| -138 | -127 | -163 | -135 | -563.0 | -140.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -95.75
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -185.75
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:
| 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|
| Percent | 72% | 55% | 55% | 69% |
| Data source | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Grossmont Union High school district County of San Diego
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
IDEA Center math proficiency
Zero+ meets standard.
41% less $meal
43% less $meal
42% less $meal
37% less $meal
• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.
Alternative Schools of Choice schools in Grossmont Union High (2)
| Grossmont Middle College High | IDEA Center |