Las Positas Elementary (Data source)
Source data for Las Positas 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 | 1489850 | 2398 | - | 2436 | = | -38 | * | (136 | / | 490) | = | -10.54693876 | ||
| 4 | 1489851 | 2437 | - | 2485 | = | -48 | * | (169 | / | 490) | = | -16.55510203 | ||
| 5 | 1489854 | 2462 | - | 2528 | = | -66 | * | (185 | / | 490) | = | -24.91836732 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Las Positas Elementary | -52 | ||||||||||||
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 | 46759 | 2417 | - | 2436 | = | -19 | * | (180 | / | 484) | = | -7.06611569 | ||
| 4 | 46761 | 2465 | - | 2485 | = | -20 | * | (138 | / | 484) | = | -5.70247932 | ||
| 5 | 46763 | 2482 | - | 2528 | = | -46 | * | (166 | / | 484) | = | -15.77685948 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Las Positas Elementary | -29 | ||||||||||||
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 | 48032 | 2445 | - | 2436 | = | 9 | * | (133 | / | 435) | = | 2.75172413 | ||
| 4 | 48034 | 2455 | - | 2485 | = | -30 | * | (165 | / | 435) | = | -11.37931032 | ||
| 5 | 48037 | 2486 | - | 2528 | = | -42 | * | (137 | / | 435) | = | -13.22758618 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Las Positas Elementary | -22 | ||||||||||||
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 | 48036 | 2427 | - | 2436 | = | -9 | * | (129 | / | 430) | = | -2.7 | ||
| 4 | 48039 | 2458 | - | 2485 | = | -27 | * | (138 | / | 430) | = | -8.66511626 | ||
| 5 | 48040 | 2490 | - | 2528 | = | -38 | * | (163 | / | 430) | = | -14.40465115 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Las Positas Elementary | -26 | ||||||||||||
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 | 48251 | 2453 | - | 2436 | = | 17 | * | (79 | / | 259) | = | 5.18532819 | ||
| 4 | 48252 | 2471 | - | 2485 | = | -14 | * | (85 | / | 259) | = | -4.59459459 | ||
| 5 | 48253 | 2521 | - | 2528 | = | -7 | * | (95 | / | 259) | = | -2.56756756 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Las Positas Elementary | -2 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -52 | -29 | -22 | -26 | -2 | -131.0 | -26.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 24.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -77.2
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 | 75% | 79% | 77% | 79% | 73% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
La Habra City Elementary 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.
Las Positas Elementary math proficiency
Zero+ meets standard.
65% less $meal
69% less $meal
62% less $meal
70% less $meal
63% 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 La Habra City Elementary (7)
| Arbolita Elementary | El Cerrito Elementary | Ladera Palma Elementary |
| Las Lomas Elementary | Las Positas Elementary | Sierra Vista Elementary |
| Walnut Elementary |