Linda Vista Elementary (Data source)
Source data for Linda 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 | 1555707 | 2381 | - | 2436 | = | -55 | * | (57 | / | 233) | = | -13.45493562 | ||
| 4 | 1555708 | 2406 | - | 2485 | = | -79 | * | (50 | / | 233) | = | -16.95278965 | ||
| 5 | 1555711 | 2454 | - | 2528 | = | -74 | * | (66 | / | 233) | = | -20.96137335 | ||
| 6 | 1555712 | 2499 | - | 2552 | = | -53 | * | (60 | / | 233) | = | -13.64806864 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Linda Vista Elementary | -65 | ||||||||||||
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 | 48729 | 2364 | - | 2436 | = | -72 | * | (59 | / | 220) | = | -19.3090909 | ||
| 4 | 48730 | 2450 | - | 2485 | = | -35 | * | (50 | / | 220) | = | -7.95454545 | ||
| 5 | 48732 | 2439 | - | 2528 | = | -89 | * | (49 | / | 220) | = | -19.82272721 | ||
| 6 | 48734 | 2517 | - | 2552 | = | -35 | * | (62 | / | 220) | = | -9.86363634 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Linda Vista Elementary | -57 | ||||||||||||
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 | 50064 | 2379 | - | 2436 | = | -57 | * | (47 | / | 203) | = | -13.1970443 | ||
| 4 | 50066 | 2441 | - | 2485 | = | -44 | * | (54 | / | 203) | = | -11.70443349 | ||
| 5 | 50069 | 2458 | - | 2528 | = | -70 | * | (49 | / | 203) | = | -16.8965517 | ||
| 6 | 50070 | 2529 | - | 2552 | = | -23 | * | (53 | / | 203) | = | -6.00492609 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Linda Vista Elementary | -48 | ||||||||||||
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 | 50092 | 2371 | - | 2436 | = | -65 | * | (42 | / | 190) | = | -14.36842102 | ||
| 4 | 50094 | 2440 | - | 2485 | = | -45 | * | (43 | / | 190) | = | -10.18421051 | ||
| 5 | 50096 | 2434 | - | 2528 | = | -94 | * | (52 | / | 190) | = | -25.72631574 | ||
| 6 | 50098 | 2520 | - | 2552 | = | -32 | * | (53 | / | 190) | = | -8.92631578 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Linda Vista Elementary | -59 | ||||||||||||
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 | 50286 | 2405 | - | 2436 | = | -31 | * | (45 | / | 183) | = | -7.62295081 | ||
| 4 | 50287 | 2430 | - | 2485 | = | -55 | * | (41 | / | 183) | = | -12.32240433 | ||
| 5 | 50288 | 2467 | - | 2528 | = | -61 | * | (44 | / | 183) | = | -14.66666664 | ||
| 6 | 50289 | 2510 | - | 2552 | = | -42 | * | (53 | / | 183) | = | -12.16393441 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Linda Vista Elementary | -47 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -65 | -57 | -48 | -59 | -47 | -276.0 | -55.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -34.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -76.2
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 | 76% | 81% | 81% | 80% | 75% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Saddleback Valley Unified school district | County of Orange
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.
Linda Vista Elementary math proficiency
Zero+ meets standard.
66% less $meal
74% less $meal
72% less $meal
76% less $meal
69% 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.