Rancho Vista Elementary (Data source)
Source data for Rancho Vista 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 | 1069089 | 2480 | - | 2436 | = | 44 | * | (71 | / | 228) | = | 13.70175435 | ||
| 4 | 1069090 | 2536 | - | 2485 | = | 51 | * | (76 | / | 228) | = | 16.99999998 | ||
| 5 | 1069093 | 2587 | - | 2528 | = | 59 | * | (81 | / | 228) | = | 20.96052626 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rancho Vista Elementary | 52 | ||||||||||||
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 | 33521 | 2503 | - | 2436 | = | 67 | * | (59 | / | 216) | = | 18.30092592 | ||
| 4 | 33524 | 2534 | - | 2485 | = | 49 | * | (78 | / | 216) | = | 17.69444444 | ||
| 5 | 33525 | 2582 | - | 2528 | = | 54 | * | (79 | / | 216) | = | 19.74999996 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rancho Vista Elementary | 56 | ||||||||||||
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 | 34123 | 2488 | - | 2436 | = | 52 | * | (64 | / | 208) | = | 15.99999996 | ||
| 4 | 34125 | 2519 | - | 2485 | = | 34 | * | (61 | / | 208) | = | 9.97115382 | ||
| 5 | 34126 | 2561 | - | 2528 | = | 33 | * | (83 | / | 208) | = | 13.16826921 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rancho Vista Elementary | 39 | ||||||||||||
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 | 34126 | 2482 | - | 2436 | = | 46 | * | (59 | / | 187) | = | 14.51336897 | ||
| 4 | 34128 | 2535 | - | 2485 | = | 50 | * | (63 | / | 187) | = | 16.84491975 | ||
| 5 | 34130 | 2576 | - | 2528 | = | 48 | * | (65 | / | 187) | = | 16.68449194 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rancho Vista Elementary | 48 | ||||||||||||
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 | 34292 | 2477 | - | 2436 | = | 41 | * | (79 | / | 188) | = | 17.22872337 | ||
| 4 | 34293 | 2539 | - | 2485 | = | 54 | * | (55 | / | 188) | = | 15.79787231 | ||
| 5 | 34294 | 2601 | - | 2528 | = | 73 | * | (54 | / | 188) | = | 20.96808507 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rancho Vista Elementary | 54 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 52 | 56 | 39 | 48 | 54 | 249.0 | 49.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 67.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 31.8
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 | 2% | 3% | 2% | 8% | 11% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palos Verdes Peninsula Unified school district | County of Los Angeles
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.
Rancho Vista Elementary math proficiency
Zero+ meets standard.
2% less $meal
2% less $meal
2% less $meal
7% less $meal
10% 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.