Avocado Elementary (Data source)
Source data for Avocado 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 | 2122697 | 2434 | - | 2436 | = | -2 | * | (107 | / | 286) | = | -0.74825175 | ||
| 4 | 2122698 | 2472 | - | 2485 | = | -13 | * | (92 | / | 286) | = | -4.18181817 | ||
| 5 | 2122701 | 2497 | - | 2528 | = | -31 | * | (87 | / | 286) | = | -9.43006992 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Avocado Elementary | -14 | ||||||||||||
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 | 65191 | 2441 | - | 2436 | = | 5 | * | (96 | / | 302) | = | 1.58940397 | ||
| 4 | 65192 | 2507 | - | 2485 | = | 22 | * | (111 | / | 302) | = | 8.0860927 | ||
| 5 | 65195 | 2506 | - | 2528 | = | -22 | * | (95 | / | 302) | = | -6.92052979 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Avocado 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 | 67006 | 2409 | - | 2436 | = | -27 | * | (77 | / | 291) | = | -7.14432987 | ||
| 4 | 67008 | 2487 | - | 2485 | = | 2 | * | (99 | / | 291) | = | 0.68041237 | ||
| 5 | 67010 | 2516 | - | 2528 | = | -12 | * | (115 | / | 291) | = | -4.74226804 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Avocado Elementary | -11 | ||||||||||||
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 | 67111 | 2416 | - | 2436 | = | -20 | * | (91 | / | 261) | = | -6.97318006 | ||
| 4 | 67113 | 2476 | - | 2485 | = | -9 | * | (81 | / | 261) | = | -2.79310344 | ||
| 5 | 67115 | 2513 | - | 2528 | = | -15 | * | (89 | / | 261) | = | -5.11494252 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Avocado Elementary | -15 | ||||||||||||
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 | 67607 | 2429 | - | 2436 | = | -7 | * | (92 | / | 249) | = | -2.58634538 | ||
| 4 | 67608 | 2477 | - | 2485 | = | -8 | * | (79 | / | 249) | = | -2.53815261 | ||
| 5 | 67609 | 2498 | - | 2528 | = | -30 | * | (78 | / | 249) | = | -9.39759036 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Avocado Elementary | -15 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -14 | 3 | -11 | -15 | -15 | -52.0 | -10.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 10.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -31.4
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 | 53% | 54% | 51% | 49% | 47% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Cajon Valley Union school district | County of San Diego
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.
Avocado Elementary math proficiency
Zero+ meets standard.
46% less $meal
49% less $meal
46% less $meal
43% less $meal
42% 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.