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 | 1556963 | 2456 | - | 2436 | = | 20 | * | (111 | / | 457) | = | 4.85776804 | ||
| 4 | 1556964 | 2522 | - | 2485 | = | 37 | * | (90 | / | 457) | = | 7.28665205 | ||
| 5 | 1556967 | 2522 | - | 2528 | = | -6 | * | (125 | / | 457) | = | -1.64113785 | ||
| 6 | 1556968 | 2596 | - | 2552 | = | 44 | * | (131 | / | 457) | = | 12.61269143 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Valencia Elementary | 23 | ||||||||||||
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 | 48768 | 2467 | - | 2436 | = | 31 | * | (106 | / | 437) | = | 7.5194508 | ||
| 4 | 48771 | 2523 | - | 2485 | = | 38 | * | (109 | / | 437) | = | 9.47826085 | ||
| 5 | 48772 | 2569 | - | 2528 | = | 41 | * | (93 | / | 437) | = | 8.72540045 | ||
| 6 | 48774 | 2555 | - | 2552 | = | 3 | * | (129 | / | 437) | = | 0.88558352 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Valencia Elementary | 27 | ||||||||||||
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 | 50105 | 2474 | - | 2436 | = | 38 | * | (96 | / | 413) | = | 8.83292976 | ||
| 4 | 50107 | 2520 | - | 2485 | = | 35 | * | (110 | / | 413) | = | 9.32203388 | ||
| 5 | 50108 | 2522 | - | 2528 | = | -6 | * | (108 | / | 413) | = | -1.56900726 | ||
| 6 | 50111 | 2597 | - | 2552 | = | 45 | * | (99 | / | 413) | = | 10.78692494 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Valencia Elementary | 27 | ||||||||||||
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 | 50132 | 2438 | - | 2436 | = | 2 | * | (57 | / | 390) | = | 0.29230769 | ||
| 4 | 50134 | 2532 | - | 2485 | = | 47 | * | (102 | / | 390) | = | 12.29230767 | ||
| 5 | 50136 | 2536 | - | 2528 | = | 8 | * | (120 | / | 390) | = | 2.46153846 | ||
| 6 | 50138 | 2577 | - | 2552 | = | 25 | * | (111 | / | 390) | = | 7.1153846 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Valencia Elementary | 22 | ||||||||||||
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 | 50326 | 2477 | - | 2436 | = | 41 | * | (81 | / | 365) | = | 9.09863013 | ||
| 4 | 50327 | 2528 | - | 2485 | = | 43 | * | (63 | / | 365) | = | 7.42191778 | ||
| 5 | 50328 | 2574 | - | 2528 | = | 46 | * | (99 | / | 365) | = | 12.4767123 | ||
| 6 | 50329 | 2592 | - | 2552 | = | 40 | * | (122 | / | 365) | = | 13.369863 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Valencia Elementary | 42 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 23 | 27 | 27 | 22 | 42 | 141.0 | 28.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 52.2
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 | 14% | 14% | 14% | 20% | 18% |
| 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.
Valencia Elementary math proficiency
Zero+ meets standard.
12% less $meal
11% less $meal
11% less $meal
19% less $meal
17% 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.