Buena Vista Elementary (Data source)
Source data for Buena 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 | 1062162 | 2392 | - | 2436 | = | -44 | * | (105 | / | 425) | = | -10.87058821 | ||
| 4 | 1062165 | 2434 | - | 2485 | = | -51 | * | (98 | / | 425) | = | -11.75999999 | ||
| 5 | 1062166 | 2454 | - | 2528 | = | -74 | * | (104 | / | 425) | = | -18.10823527 | ||
| 6 | 1062169 | 2497 | - | 2552 | = | -55 | * | (118 | / | 425) | = | -15.27058819 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Buena Vista Elementary | -56 | ||||||||||||
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 | 33323 | 2388 | - | 2436 | = | -48 | * | (94 | / | 392) | = | -11.51020406 | ||
| 4 | 33326 | 2437 | - | 2485 | = | -48 | * | (100 | / | 392) | = | -12.24489792 | ||
| 5 | 33327 | 2470 | - | 2528 | = | -58 | * | (99 | / | 392) | = | -14.64795916 | ||
| 6 | 33330 | 2488 | - | 2552 | = | -64 | * | (99 | / | 392) | = | -16.16326528 | ||
| 7 | 33331 | 0 | - | 2567 | = | * | (0 | / | 392) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Buena Vista Elementary | -55 | ||||||||||||
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 | 33915 | 2393 | - | 2436 | = | -43 | * | (94 | / | 384) | = | -10.52604164 | ||
| 4 | 33917 | 2405 | - | 2485 | = | -80 | * | (98 | / | 384) | = | -20.41666664 | ||
| 5 | 33919 | 2467 | - | 2528 | = | -61 | * | (103 | / | 384) | = | -16.36197913 | ||
| 6 | 33921 | 2472 | - | 2552 | = | -80 | * | (89 | / | 384) | = | -18.54166664 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Buena Vista Elementary | -66 | ||||||||||||
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 | 33933 | 2394 | - | 2436 | = | -42 | * | (95 | / | 290) | = | -13.75862065 | ||
| 4 | 33935 | 2423 | - | 2485 | = | -62 | * | (97 | / | 290) | = | -20.737931 | ||
| 5 | 33937 | 2437 | - | 2528 | = | -91 | * | (98 | / | 290) | = | -30.75172409 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Buena Vista Elementary | -65 | ||||||||||||
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 | 34114 | 2390 | - | 2436 | = | -46 | * | (99 | / | 294) | = | -15.48979588 | ||
| 4 | 34115 | 2426 | - | 2485 | = | -59 | * | (100 | / | 294) | = | -20.06802719 | ||
| 5 | 34116 | 2445 | - | 2528 | = | -83 | * | (95 | / | 294) | = | -26.81972783 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Buena Vista Elementary | -62 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -56 | -55 | -66 | -65 | -62 | -304.0 | -60.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -45.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -75.8
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 | 84% | 84% | 76% | 82% | 86% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palmdale Elementary 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.
Buena Vista Elementary math proficiency
Zero+ meets standard.
70% less $meal
70% less $meal
60% less $meal
72% less $meal
74% 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.