Serrano Elementary (Data source)
Source data for Serrano 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 | 1515882 | 2445 | - | 2436 | = | 9 | * | (92 | / | 360) | = | 2.3 | ||
| 4 | 1515885 | 2489 | - | 2485 | = | 4 | * | (93 | / | 360) | = | 1.03333333 | ||
| 5 | 1515886 | 2496 | - | 2528 | = | -32 | * | (86 | / | 360) | = | -7.64444442 | ||
| 6 | 1515889 | 2531 | - | 2552 | = | -21 | * | (89 | / | 360) | = | -5.19166666 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Serrano Elementary | -10 | ||||||||||||
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 | 47507 | 2453 | - | 2436 | = | 17 | * | (80 | / | 356) | = | 3.82022472 | ||
| 4 | 47508 | 2489 | - | 2485 | = | 4 | * | (91 | / | 356) | = | 1.02247191 | ||
| 5 | 47510 | 2509 | - | 2528 | = | -19 | * | (95 | / | 356) | = | -5.07022471 | ||
| 6 | 47512 | 2540 | - | 2552 | = | -12 | * | (90 | / | 356) | = | -3.03370786 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Serrano Elementary | -3 | ||||||||||||
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 | 48801 | 2462 | - | 2436 | = | 26 | * | (59 | / | 314) | = | 4.88535031 | ||
| 4 | 48802 | 2496 | - | 2485 | = | 11 | * | (76 | / | 314) | = | 2.66242038 | ||
| 5 | 48804 | 2507 | - | 2528 | = | -21 | * | (85 | / | 314) | = | -5.68471336 | ||
| 6 | 48806 | 2532 | - | 2552 | = | -20 | * | (94 | / | 314) | = | -5.98726114 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Serrano Elementary | -4 | ||||||||||||
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 | 48822 | 2454 | - | 2436 | = | 18 | * | (68 | / | 275) | = | 4.45090909 | ||
| 4 | 48825 | 2473 | - | 2485 | = | -12 | * | (55 | / | 275) | = | -2.4 | ||
| 5 | 48826 | 2506 | - | 2528 | = | -22 | * | (74 | / | 275) | = | -5.92 | ||
| 6 | 48829 | 2542 | - | 2552 | = | -10 | * | (78 | / | 275) | = | -2.83636363 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Serrano Elementary | -7 | ||||||||||||
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 | 49022 | 2454 | - | 2436 | = | 18 | * | (76 | / | 272) | = | 5.02941175 | ||
| 4 | 49023 | 2502 | - | 2485 | = | 17 | * | (62 | / | 272) | = | 3.87499999 | ||
| 5 | 49024 | 2515 | - | 2528 | = | -13 | * | (57 | / | 272) | = | -2.7242647 | ||
| 6 | 49025 | 2543 | - | 2552 | = | -9 | * | (77 | / | 272) | = | -2.54779412 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Serrano Elementary | 4 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -10 | -3 | -4 | -7 | 4 | -20.0 | -4.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 11.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -19.0
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 | 21% | 19% | 21% | 31% | 29% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Orange 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.
Serrano Elementary math proficiency
Zero+ meets standard.
17% less $meal
15% less $meal
17% less $meal
29% less $meal
27% 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.