Lucas Valley Elementary (Data source)
Source data for Lucas Valley Elementary
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 | 1244452 | 2500 | - | 2436 | = | 64 | * | (65 | / | 197) | = | 21.11675123 | ||
| 4 | 1244455 | 2522 | - | 2485 | = | 37 | * | (62 | / | 197) | = | 11.64467004 | ||
| 5 | 1244456 | 2566 | - | 2528 | = | 38 | * | (70 | / | 197) | = | 13.50253806 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lucas Valley Elementary | 46 | ||||||||||||
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 | 38771 | 2498 | - | 2436 | = | 62 | * | (62 | / | 192) | = | 20.02083329 | ||
| 4 | 38772 | 2532 | - | 2485 | = | 47 | * | (67 | / | 192) | = | 16.40104165 | ||
| 5 | 38775 | 2557 | - | 2528 | = | 29 | * | (63 | / | 192) | = | 9.515625 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lucas Valley Elementary | 46 | ||||||||||||
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 | 39739 | 2477 | - | 2436 | = | 41 | * | (71 | / | 207) | = | 14.06280193 | ||
| 4 | 39742 | 2530 | - | 2485 | = | 45 | * | (68 | / | 207) | = | 14.78260868 | ||
| 5 | 39744 | 2567 | - | 2528 | = | 39 | * | (68 | / | 207) | = | 12.81159419 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lucas Valley Elementary | 42 | ||||||||||||
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 | 39763 | 2481 | - | 2436 | = | 45 | * | (67 | / | 203) | = | 14.85221675 | ||
| 4 | 39764 | 2523 | - | 2485 | = | 38 | * | (72 | / | 203) | = | 13.47783248 | ||
| 5 | 39767 | 2593 | - | 2528 | = | 65 | * | (64 | / | 203) | = | 20.49261078 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lucas Valley Elementary | 49 | ||||||||||||
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 | 39924 | 2490 | - | 2436 | = | 54 | * | (68 | / | 206) | = | 17.8252427 | ||
| 4 | 39925 | 2516 | - | 2485 | = | 31 | * | (67 | / | 206) | = | 10.08252426 | ||
| 5 | 39926 | 2565 | - | 2528 | = | 37 | * | (71 | / | 206) | = | 12.75242718 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lucas Valley Elementary | 41 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 46 | 46 | 42 | 49 | 41 | 224.0 | 44.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 53.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 35.8
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:
| 2015 | 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|---|
| Percent | 4% | 3% | 4% | 7% | 8% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Miller Creek Elementary school district | County of Marin
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Lucas Valley Elementary math proficiency
Zero+ meets standard.
3% less $meal
2% less $meal
4% less $meal
7% less $meal
7% 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.
Elementary School (Public) schools in Miller Creek Elementary (3)
| Lucas Valley Elementary | Mary E. Silveira Elementary | Vallecito Elementary |