Arroyo Seco Elementary (Data source)
Source data for Arroyo Seco 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 | 59243 | 2429 | - | 2436 | = | -7 | * | (125 | / | 334) | = | -2.61976048 | ||
| 4 | 59246 | 2484 | - | 2485 | = | -1 | * | (111 | / | 334) | = | -0.33233533 | ||
| 5 | 59247 | 2518 | - | 2528 | = | -10 | * | (98 | / | 334) | = | -2.93413173 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Arroyo Seco Elementary | -6 | ||||||||||||
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 | 1572 | 2442 | - | 2436 | = | 6 | * | (90 | / | 316) | = | 1.70886076 | ||
| 4 | 1573 | 2472 | - | 2485 | = | -13 | * | (125 | / | 316) | = | -5.14240506 | ||
| 5 | 1576 | 2499 | - | 2528 | = | -29 | * | (101 | / | 316) | = | -9.26898734 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Arroyo Seco Elementary | -13 | ||||||||||||
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 | 1619 | 2465 | - | 2436 | = | 29 | * | (103 | / | 334) | = | 8.94311376 | ||
| 4 | 1622 | 2477 | - | 2485 | = | -8 | * | (97 | / | 334) | = | -2.32335329 | ||
| 5 | 1624 | 2497 | - | 2528 | = | -31 | * | (134 | / | 334) | = | -12.43712572 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Arroyo Seco Elementary | -6 | ||||||||||||
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 | 1635 | 2447 | - | 2436 | = | 11 | * | (95 | / | 315) | = | 3.31746031 | ||
| 4 | 1638 | 2483 | - | 2485 | = | -2 | * | (121 | / | 315) | = | -0.76825397 | ||
| 5 | 1639 | 2486 | - | 2528 | = | -42 | * | (99 | / | 315) | = | -13.19999999 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Arroyo Seco Elementary | -11 | ||||||||||||
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 | 1661 | 2436 | - | 2436 | = | 0 | * | (121 | / | 333) | = | 0.0 | ||
| 4 | 1662 | 2481 | - | 2485 | = | -4 | * | (92 | / | 333) | = | -1.1051051 | ||
| 5 | 1663 | 2513 | - | 2528 | = | -15 | * | (120 | / | 333) | = | -5.4054054 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Arroyo Seco Elementary | -7 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -6 | -13 | -6 | -11 | -7 | -43.0 | -8.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 0.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -17.6
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 | 24% | 24% | 23% | 23% | 23% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Livermore Valley Joint Unified school district | County of Alameda
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.
Arroyo Seco Elementary math proficiency
Zero+ meets standard.
20% less $meal
21% less $meal
18% less $meal
20% less $meal
22% 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.