San Lorenzo Valley Elementary (Data source)
Source data for San Lorenzo 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 | 2755867 | 2445 | - | 2436 | = | 9 | * | (114 | / | 337) | = | 3.04451038 | ||
| 4 | 2755868 | 2487 | - | 2485 | = | 2 | * | (104 | / | 337) | = | 0.61721068 | ||
| 5 | 2755871 | 2529 | - | 2528 | = | 1 | * | (119 | / | 337) | = | 0.35311573 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for San Lorenzo Valley Elementary | 4 | ||||||||||||
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 | 83836 | 2454 | - | 2436 | = | 18 | * | (107 | / | 331) | = | 5.8187311 | ||
| 4 | 83838 | 2489 | - | 2485 | = | 4 | * | (114 | / | 331) | = | 1.3776435 | ||
| 5 | 83840 | 2527 | - | 2528 | = | -1 | * | (110 | / | 331) | = | -0.33232628 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for San Lorenzo Valley Elementary | 7 | ||||||||||||
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 | 86152 | 2472 | - | 2436 | = | 36 | * | (81 | / | 296) | = | 9.85135133 | ||
| 4 | 86155 | 2487 | - | 2485 | = | 2 | * | (108 | / | 296) | = | 0.72972973 | ||
| 5 | 86157 | 2502 | - | 2528 | = | -26 | * | (107 | / | 296) | = | -9.39864864 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for San Lorenzo Valley Elementary | 1 | ||||||||||||
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 | 86385 | 2496 | - | 2436 | = | 60 | * | (85 | / | 281) | = | 18.14946618 | ||
| 4 | 86386 | 2515 | - | 2485 | = | 30 | * | (88 | / | 281) | = | 9.39501777 | ||
| 5 | 86389 | 2527 | - | 2528 | = | -1 | * | (108 | / | 281) | = | -0.38434164 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for San Lorenzo Valley Elementary | 27 | ||||||||||||
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 | 86984 | 2488 | - | 2436 | = | 52 | * | (94 | / | 263) | = | 18.5855513 | ||
| 4 | 86985 | 2526 | - | 2485 | = | 41 | * | (81 | / | 263) | = | 12.62737639 | ||
| 5 | 86986 | 2519 | - | 2528 | = | -9 | * | (88 | / | 263) | = | -3.01140684 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for San Lorenzo Valley Elementary | 28 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 4 | 7 | 1 | 27 | 28 | 67.0 | 13.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 52.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -25.6
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 | 16% | 16% | 13% | 21% | 21% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Lorenzo Valley Unified school district | County of Santa Cruz
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.
San Lorenzo Valley Elementary math proficiency
Zero+ meets standard.
15% less $meal
13% less $meal
13% less $meal
19% less $meal
20% 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 San Lorenzo Valley Unified (2)
| Boulder Creek Elementary | San Lorenzo Valley Elementary |