Valencia Elementary (Data source)
Source data for Valencia 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 | 2751895 | 2441 | - | 2436 | = | 5 | * | (71 | / | 307) | = | 1.15635179 | ||
| 4 | 2751896 | 2465 | - | 2485 | = | -20 | * | (64 | / | 307) | = | -4.1693811 | ||
| 5 | 2751898 | 2539 | - | 2528 | = | 11 | * | (91 | / | 307) | = | 3.26058632 | ||
| 6 | 2751901 | 2516 | - | 2552 | = | -36 | * | (81 | / | 307) | = | -9.49837133 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Valencia Elementary | -9 | ||||||||||||
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 | 83706 | 2455 | - | 2436 | = | 19 | * | (67 | / | 310) | = | 4.10645161 | ||
| 4 | 83709 | 2486 | - | 2485 | = | 1 | * | (78 | / | 310) | = | 0.2516129 | ||
| 5 | 83710 | 2543 | - | 2528 | = | 15 | * | (71 | / | 310) | = | 3.43548387 | ||
| 6 | 83713 | 2519 | - | 2552 | = | -33 | * | (94 | / | 310) | = | -10.0064516 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Valencia Elementary | -2 | ||||||||||||
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 | 86023 | 2454 | - | 2436 | = | 18 | * | (61 | / | 279) | = | 3.93548386 | ||
| 4 | 86024 | 2462 | - | 2485 | = | -23 | * | (72 | / | 279) | = | -5.93548387 | ||
| 5 | 86026 | 2556 | - | 2528 | = | 28 | * | (81 | / | 279) | = | 8.12903224 | ||
| 6 | 86029 | 2556 | - | 2552 | = | 4 | * | (65 | / | 279) | = | 0.93189964 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Valencia Elementary | 7 | ||||||||||||
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 | 86255 | 2437 | - | 2436 | = | 1 | * | (76 | / | 299) | = | 0.2541806 | ||
| 4 | 86256 | 2482 | - | 2485 | = | -3 | * | (66 | / | 299) | = | -0.66220736 | ||
| 5 | 86259 | 2541 | - | 2528 | = | 13 | * | (72 | / | 299) | = | 3.13043478 | ||
| 6 | 86260 | 2579 | - | 2552 | = | 27 | * | (85 | / | 299) | = | 7.67558527 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Valencia Elementary | 10 | ||||||||||||
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 | 86851 | 2451 | - | 2436 | = | 15 | * | (73 | / | 287) | = | 3.815331 | ||
| 4 | 86852 | 2488 | - | 2485 | = | 3 | * | (74 | / | 287) | = | 0.77351916 | ||
| 5 | 86853 | 2537 | - | 2528 | = | 9 | * | (70 | / | 287) | = | 2.19512195 | ||
| 6 | 86854 | 2543 | - | 2552 | = | -9 | * | (70 | / | 287) | = | -2.19512195 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Valencia Elementary | 5 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -9 | -2 | 7 | 10 | 5 | 11.0 | 2.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 23.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -18.8
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 | 35% | 32% | 31% | 36% | 38% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pajaro Valley Unified school district | County of Santa Cruz
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 Elementary math proficiency
Zero+ meets standard.
31% less $meal
29% less $meal
28% less $meal
34% less $meal
34% 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.