Vista Elementary (Data source)
Source data for 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 | 3140575 | 2485 | - | 2436 | = | 49 | * | (103 | / | 382) | = | 13.21204184 | ||
| 4 | 3140578 | 2539 | - | 2485 | = | 54 | * | (96 | / | 382) | = | 13.5706806 | ||
| 5 | 3140579 | 2577 | - | 2528 | = | 49 | * | (91 | / | 382) | = | 11.67277486 | ||
| 6 | 3140582 | 2629 | - | 2552 | = | 77 | * | (92 | / | 382) | = | 18.54450259 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Vista Elementary | 57 | ||||||||||||
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 | 96825 | 2464 | - | 2436 | = | 28 | * | (102 | / | 370) | = | 7.7189189 | ||
| 4 | 96826 | 2528 | - | 2485 | = | 43 | * | (99 | / | 370) | = | 11.50540538 | ||
| 5 | 96828 | 2575 | - | 2528 | = | 47 | * | (98 | / | 370) | = | 12.44864861 | ||
| 6 | 96831 | 2594 | - | 2552 | = | 42 | * | (71 | / | 370) | = | 8.05945942 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Vista Elementary | 40 | ||||||||||||
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 | 99624 | 2461 | - | 2436 | = | 25 | * | (96 | / | 361) | = | 6.64819943 | ||
| 4 | 99626 | 2523 | - | 2485 | = | 38 | * | (98 | / | 361) | = | 10.31578947 | ||
| 5 | 99627 | 2570 | - | 2528 | = | 42 | * | (94 | / | 361) | = | 10.93628806 | ||
| 6 | 99630 | 2605 | - | 2552 | = | 53 | * | (73 | / | 361) | = | 10.7174515 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for 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 | 99783 | 2478 | - | 2436 | = | 42 | * | (102 | / | 370) | = | 11.57837835 | ||
| 4 | 99785 | 2529 | - | 2485 | = | 44 | * | (100 | / | 370) | = | 11.89189188 | ||
| 5 | 99787 | 2544 | - | 2528 | = | 16 | * | (99 | / | 370) | = | 4.28108107 | ||
| 6 | 99789 | 2598 | - | 2552 | = | 46 | * | (69 | / | 370) | = | 8.57837836 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Vista Elementary | 36 | ||||||||||||
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 | 100448 | 2494 | - | 2436 | = | 58 | * | (96 | / | 365) | = | 15.25479448 | ||
| 4 | 100449 | 2539 | - | 2485 | = | 54 | * | (97 | / | 365) | = | 14.3506849 | ||
| 5 | 100450 | 2561 | - | 2528 | = | 33 | * | (96 | / | 365) | = | 8.67945203 | ||
| 6 | 100451 | 2600 | - | 2552 | = | 48 | * | (76 | / | 365) | = | 9.99452054 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Vista Elementary | 48 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 57 | 40 | 39 | 36 | 48 | 220.0 | 44.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 68.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 20.0
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 | 13% | 12% | 13% | 15% | 16% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Simi Valley Unified 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.
Vista Elementary math proficiency
Zero+ meets standard.
7% less $meal
8% less $meal
9% less $meal
12% less $meal
11% 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.