Valencia Academy of the Arts (Data source)
Source data for Valencia Academy of the Arts
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 | 698008 | 2376 | - | 2436 | = | -60 | * | (66 | / | 194) | = | -20.4123711 | ||
| 4 | 698011 | 2446 | - | 2485 | = | -39 | * | (68 | / | 194) | = | -13.67010306 | ||
| 5 | 698012 | 2436 | - | 2528 | = | -92 | * | (60 | / | 194) | = | -28.4536082 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Valencia Academy of the Arts | -63 | ||||||||||||
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 | 22068 | 2391 | - | 2436 | = | -45 | * | (69 | / | 199) | = | -15.60301506 | ||
| 4 | 22070 | 2429 | - | 2485 | = | -56 | * | (63 | / | 199) | = | -17.72864318 | ||
| 5 | 22073 | 2451 | - | 2528 | = | -77 | * | (67 | / | 199) | = | -25.92462311 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Valencia Academy of the Arts | -59 | ||||||||||||
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 | 22489 | 2429 | - | 2436 | = | -7 | * | (87 | / | 222) | = | -2.74324324 | ||
| 4 | 22491 | 2455 | - | 2485 | = | -30 | * | (71 | / | 222) | = | -9.59459457 | ||
| 5 | 22494 | 2449 | - | 2528 | = | -79 | * | (64 | / | 222) | = | -22.77477475 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Valencia Academy of the Arts | -35 | ||||||||||||
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 | 22478 | 2431 | - | 2436 | = | -5 | * | (75 | / | 229) | = | -1.63755459 | ||
| 4 | 22480 | 2465 | - | 2485 | = | -20 | * | (84 | / | 229) | = | -7.33624454 | ||
| 5 | 22482 | 2455 | - | 2528 | = | -73 | * | (70 | / | 229) | = | -22.31441042 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Valencia Academy of the Arts | -31 | ||||||||||||
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 | 22662 | 2454 | - | 2436 | = | 18 | * | (51 | / | 197) | = | 4.65989846 | ||
| 4 | 22663 | 2469 | - | 2485 | = | -16 | * | (70 | / | 197) | = | -5.68527918 | ||
| 5 | 22664 | 2495 | - | 2528 | = | -33 | * | (76 | / | 197) | = | -12.73096447 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Valencia Academy of the Arts | -14 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -63 | -59 | -35 | -31 | -14 | -202.0 | -40.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 19.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.4
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 | 86% | 76% | 78% | 79% | 73% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
El Rancho 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.
Valencia Academy of the Arts math proficiency
Zero+ meets standard.
70% less $meal
65% less $meal
65% less $meal
67% less $meal
64% 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.