Valencia Valley Elementary (Data source)
Source data for Valencia Valley 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 | 1046988 | 2474 | - | 2436 | = | 38 | * | (95 | / | 392) | = | 9.20918364 | ||
| 4 | 1046989 | 2498 | - | 2485 | = | 13 | * | (106 | / | 392) | = | 3.51530612 | ||
| 5 | 1046992 | 2554 | - | 2528 | = | 26 | * | (96 | / | 392) | = | 6.36734693 | ||
| 6 | 1046993 | 2560 | - | 2552 | = | 8 | * | (95 | / | 392) | = | 1.9387755 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Valencia Valley Elementary | 21 | ||||||||||||
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 | 32891 | 2481 | - | 2436 | = | 45 | * | (103 | / | 397) | = | 11.67506294 | ||
| 4 | 32892 | 2519 | - | 2485 | = | 34 | * | (100 | / | 397) | = | 8.56423171 | ||
| 5 | 32895 | 2553 | - | 2528 | = | 25 | * | (104 | / | 397) | = | 6.54911838 | ||
| 6 | 32896 | 2604 | - | 2552 | = | 52 | * | (90 | / | 397) | = | 11.78841305 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Valencia Valley Elementary | 39 | ||||||||||||
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 | 33456 | 2488 | - | 2436 | = | 52 | * | (103 | / | 403) | = | 13.29032255 | ||
| 4 | 33459 | 2502 | - | 2485 | = | 17 | * | (104 | / | 403) | = | 4.38709677 | ||
| 5 | 33460 | 2576 | - | 2528 | = | 48 | * | (100 | / | 403) | = | 11.91066994 | ||
| 6 | 33462 | 2594 | - | 2552 | = | 42 | * | (96 | / | 403) | = | 10.00496276 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Valencia Valley Elementary | 40 | ||||||||||||
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 | 33481 | 2501 | - | 2436 | = | 65 | * | (92 | / | 391) | = | 15.29411761 | ||
| 4 | 33483 | 2527 | - | 2485 | = | 42 | * | (98 | / | 391) | = | 10.52685421 | ||
| 5 | 33485 | 2546 | - | 2528 | = | 18 | * | (103 | / | 391) | = | 4.74168796 | ||
| 6 | 33487 | 2625 | - | 2552 | = | 73 | * | (98 | / | 391) | = | 18.29667518 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Valencia Valley Elementary | 49 | ||||||||||||
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 | 33657 | 2500 | - | 2436 | = | 64 | * | (97 | / | 391) | = | 15.87723782 | ||
| 4 | 33658 | 2538 | - | 2485 | = | 53 | * | (94 | / | 391) | = | 12.74168797 | ||
| 5 | 33659 | 2566 | - | 2528 | = | 38 | * | (98 | / | 391) | = | 9.52429667 | ||
| 6 | 33660 | 2604 | - | 2552 | = | 52 | * | (102 | / | 391) | = | 13.56521738 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Valencia Valley Elementary | 52 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 21 | 39 | 40 | 49 | 52 | 201.0 | 40.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 76.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 4.2
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 | 18% | 16% | 15% | 20% | 20% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Newhall 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 Valley Elementary math proficiency
Zero+ meets standard.
12% less $meal
11% less $meal
12% less $meal
18% less $meal
18% 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.