Rio Plaza Elementary (Data source)
Source data for Rio Plaza 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 | 3132196 | 2400 | - | 2436 | = | -36 | * | (94 | / | 266) | = | -12.72180449 | ||
4 | 3132199 | 2398 | - | 2485 | = | -87 | * | (90 | / | 266) | = | -29.43609017 | ||
5 | 3132200 | 2436 | - | 2528 | = | -92 | * | (82 | / | 266) | = | -28.36090219 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rio Plaza Elementary | -71 |
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 | 96568 | 2394 | - | 2436 | = | -42 | * | (82 | / | 269) | = | -12.80297395 | ||
4 | 96570 | 2405 | - | 2485 | = | -80 | * | (100 | / | 269) | = | -29.73977688 | ||
5 | 96573 | 2422 | - | 2528 | = | -106 | * | (87 | / | 269) | = | -34.28252784 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rio Plaza Elementary | -77 |
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 | 99370 | 2404 | - | 2436 | = | -32 | * | (87 | / | 261) | = | -10.66666666 | ||
4 | 99372 | 2421 | - | 2485 | = | -64 | * | (80 | / | 261) | = | -19.61685818 | ||
5 | 99374 | 2439 | - | 2528 | = | -89 | * | (94 | / | 261) | = | -32.05363978 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rio Plaza Elementary | -62 |
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 | 99528 | 2410 | - | 2436 | = | -26 | * | (95 | / | 268) | = | -9.21641789 | ||
4 | 99531 | 2417 | - | 2485 | = | -68 | * | (85 | / | 268) | = | -21.56716417 | ||
5 | 99532 | 2437 | - | 2528 | = | -91 | * | (88 | / | 268) | = | -29.88059693 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rio Plaza Elementary | -61 |
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 | 100193 | 2401 | - | 2436 | = | -35 | * | (96 | / | 277) | = | -12.1299639 | ||
4 | 100194 | 2439 | - | 2485 | = | -46 | * | (93 | / | 277) | = | -15.44404331 | ||
5 | 100195 | 2430 | - | 2528 | = | -98 | * | (88 | / | 277) | = | -31.13357394 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rio Plaza Elementary | -59 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-71 | -77 | -62 | -61 | -59 | -330.0 | -66.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -45.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.0
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 | 82% | 92% | 90% | 90% | 77% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rio Elementary school district | County of Ventura
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.
Rio Plaza Elementary math proficiency
Zero+ meets standard.

73% less $meal

84% less $meal

83% less $meal

85% less $meal

76% 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 Rio Elementary (7)
Rio Del Mar | Rio del Norte | Rio del Sol |
Rio Lindo Elementary | Rio Plaza Elementary | Rio Real Elementary |
Rio Rosales |