Vallecito Elementary (Data source)
Source data for Vallecito 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 | 1245262 | 2476 | - | 2436 | = | 40 | * | (66 | / | 213) | = | 12.39436616 | ||
| 4 | 1245265 | 2514 | - | 2485 | = | 29 | * | (70 | / | 213) | = | 9.53051641 | ||
| 5 | 1245266 | 2537 | - | 2528 | = | 9 | * | (77 | / | 213) | = | 3.25352112 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Vallecito Elementary | 25 | ||||||||||||
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 | 38795 | 2477 | - | 2436 | = | 41 | * | (88 | / | 226) | = | 15.96460173 | ||
| 4 | 38797 | 2518 | - | 2485 | = | 33 | * | (69 | / | 226) | = | 10.07522122 | ||
| 5 | 38799 | 2562 | - | 2528 | = | 34 | * | (69 | / | 226) | = | 10.38053096 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Vallecito Elementary | 36 | ||||||||||||
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 | 39764 | 2476 | - | 2436 | = | 40 | * | (81 | / | 232) | = | 13.96551724 | ||
| 4 | 39766 | 2511 | - | 2485 | = | 26 | * | (91 | / | 232) | = | 10.19827585 | ||
| 5 | 39767 | 2543 | - | 2528 | = | 15 | * | (60 | / | 232) | = | 3.87931034 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Vallecito Elementary | 28 | ||||||||||||
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 | 39786 | 2480 | - | 2436 | = | 44 | * | (94 | / | 263) | = | 15.72623571 | ||
| 4 | 39789 | 2512 | - | 2485 | = | 27 | * | (80 | / | 263) | = | 8.21292774 | ||
| 5 | 39790 | 2543 | - | 2528 | = | 15 | * | (89 | / | 263) | = | 5.07604562 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Vallecito Elementary | 29 | ||||||||||||
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 | 39948 | 2474 | - | 2436 | = | 38 | * | (74 | / | 245) | = | 11.47755101 | ||
| 4 | 39949 | 2530 | - | 2485 | = | 45 | * | (95 | / | 245) | = | 17.44897959 | ||
| 5 | 39950 | 2546 | - | 2528 | = | 18 | * | (76 | / | 245) | = | 5.58367346 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Vallecito Elementary | 35 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 25 | 36 | 28 | 29 | 35 | 153.0 | 30.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 42.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 18.6
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 | 14% | 14% | 12% | 13% | 12% |
| 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.
Vallecito Elementary math proficiency
Zero+ meets standard.
12% less $meal
10% less $meal
11% less $meal
12% less $meal
12% 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 |