Lilac (Data source)
Source data for Lilac
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 | 2344270 | 2394 | - | 2436 | = | -42 | * | (99 | / | 288) | = | -14.4375 | ||
| 4 | 2344273 | 2451 | - | 2485 | = | -34 | * | (87 | / | 288) | = | -10.27083332 | ||
| 5 | 2344274 | 2484 | - | 2528 | = | -44 | * | (102 | / | 288) | = | -15.5833333 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lilac | -40 | ||||||||||||
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 | 71647 | 2407 | - | 2436 | = | -29 | * | (104 | / | 295) | = | -10.22372879 | ||
| 4 | 71650 | 2422 | - | 2485 | = | -63 | * | (102 | / | 295) | = | -21.78305079 | ||
| 5 | 71651 | 2476 | - | 2528 | = | -52 | * | (89 | / | 295) | = | -15.68813558 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lilac | -48 | ||||||||||||
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 | 73541 | 2381 | - | 2436 | = | -55 | * | (102 | / | 309) | = | -18.15533979 | ||
| 4 | 73542 | 2434 | - | 2485 | = | -51 | * | (101 | / | 309) | = | -16.66990289 | ||
| 5 | 73545 | 2459 | - | 2528 | = | -69 | * | (106 | / | 309) | = | -23.6699029 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lilac | -58 | ||||||||||||
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 | 73680 | 2412 | - | 2436 | = | -24 | * | (65 | / | 252) | = | -6.19047617 | ||
| 4 | 73682 | 2432 | - | 2485 | = | -53 | * | (89 | / | 252) | = | -18.71825396 | ||
| 5 | 73684 | 2457 | - | 2528 | = | -71 | * | (98 | / | 252) | = | -27.61111105 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lilac | -53 | ||||||||||||
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 | 74141 | 2398 | - | 2436 | = | -38 | * | (75 | / | 222) | = | -12.83783781 | ||
| 4 | 74142 | 2444 | - | 2485 | = | -41 | * | (62 | / | 222) | = | -11.45045044 | ||
| 5 | 74143 | 2470 | - | 2528 | = | -58 | * | (85 | / | 222) | = | -22.20720716 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lilac | -46 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -40 | -48 | -58 | -53 | -46 | -245.0 | -49.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -31.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -67.0
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 | 45% | 44% | 47% | 51% | 49% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Valley Center-Pauma Unified 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.
Lilac math proficiency
Zero+ meets standard.
37% less $meal
37% less $meal
41% less $meal
45% less $meal
44% 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.
Elementary School (Public) schools in Valley Center-Pauma Unified (4)
| Lilac | Pauma Elementary | Valley Center Elementary |
| Valley Center Primary |