Old Orchard Elementary (Data source)
Source data for Old Orchard 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 | 1046336 | 2416 | - | 2436 | = | -20 | * | (66 | / | 263) | = | -5.0190114 | ||
| 4 | 1046337 | 2433 | - | 2485 | = | -52 | * | (64 | / | 263) | = | -12.65399236 | ||
| 5 | 1046340 | 2506 | - | 2528 | = | -22 | * | (71 | / | 263) | = | -5.93916349 | ||
| 6 | 1046341 | 2513 | - | 2552 | = | -39 | * | (62 | / | 263) | = | -9.19391632 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Old Orchard Elementary | -33 | ||||||||||||
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 | 32871 | 2455 | - | 2436 | = | 19 | * | (77 | / | 293) | = | 4.99317405 | ||
| 4 | 32873 | 2492 | - | 2485 | = | 7 | * | (74 | / | 293) | = | 1.76791808 | ||
| 5 | 32874 | 2486 | - | 2528 | = | -42 | * | (68 | / | 293) | = | -9.74744026 | ||
| 6 | 32877 | 2544 | - | 2552 | = | -8 | * | (74 | / | 293) | = | -2.02047781 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Old Orchard Elementary | -5 | ||||||||||||
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 | 33437 | 2447 | - | 2436 | = | 11 | * | (73 | / | 290) | = | 2.76896551 | ||
| 4 | 33439 | 2506 | - | 2485 | = | 21 | * | (77 | / | 290) | = | 5.57586206 | ||
| 5 | 33440 | 2516 | - | 2528 | = | -12 | * | (73 | / | 290) | = | -3.02068964 | ||
| 6 | 33443 | 2519 | - | 2552 | = | -33 | * | (67 | / | 290) | = | -7.62413791 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Old Orchard Elementary | -2 | ||||||||||||
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 | 33461 | 2454 | - | 2436 | = | 18 | * | (50 | / | 263) | = | 3.42205322 | ||
| 4 | 33463 | 2494 | - | 2485 | = | 9 | * | (68 | / | 263) | = | 2.3269962 | ||
| 5 | 33465 | 2548 | - | 2528 | = | 20 | * | (72 | / | 263) | = | 5.47528516 | ||
| 6 | 33467 | 2542 | - | 2552 | = | -10 | * | (73 | / | 263) | = | -2.77566539 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Old Orchard Elementary | 8 | ||||||||||||
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 | 33637 | 2455 | - | 2436 | = | 19 | * | (51 | / | 236) | = | 4.10593219 | ||
| 4 | 33638 | 2516 | - | 2485 | = | 31 | * | (51 | / | 236) | = | 6.69915251 | ||
| 5 | 33639 | 2534 | - | 2528 | = | 6 | * | (65 | / | 236) | = | 1.65254237 | ||
| 6 | 33640 | 2579 | - | 2552 | = | 27 | * | (69 | / | 236) | = | 7.89406779 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Old Orchard Elementary | 20 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -33 | -5 | -2 | 8 | 20 | -12.0 | -2.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 54.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -59.4
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 | 40% | 41% | 43% | 44% | 41% |
| 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.
Old Orchard Elementary math proficiency
Zero+ meets standard.
37% less $meal
36% less $meal
37% less $meal
41% less $meal
36% 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.