Castaic Elementary (Data source)
Source data for Castaic 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 | 654111 | 2436 | - | 2436 | = | 0 | * | (108 | / | 278) | = | 0.0 | ||
| 4 | 654112 | 2456 | - | 2485 | = | -29 | * | (78 | / | 278) | = | -8.13669063 | ||
| 5 | 654115 | 2491 | - | 2528 | = | -37 | * | (92 | / | 278) | = | -12.24460429 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Castaic Elementary | -20 | ||||||||||||
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 | 20786 | 2444 | - | 2436 | = | 8 | * | (63 | / | 333) | = | 1.51351351 | ||
| 4 | 20788 | 2489 | - | 2485 | = | 4 | * | (101 | / | 333) | = | 1.21321321 | ||
| 5 | 20789 | 2503 | - | 2528 | = | -25 | * | (76 | / | 333) | = | -5.7057057 | ||
| 6 | 20791 | 2546 | - | 2552 | = | -6 | * | (93 | / | 333) | = | -1.67567567 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Castaic 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 | 21148 | 2428 | - | 2436 | = | -8 | * | (46 | / | 291) | = | -1.26460481 | ||
| 4 | 21149 | 2473 | - | 2485 | = | -12 | * | (69 | / | 291) | = | -2.84536082 | ||
| 5 | 21152 | 2508 | - | 2528 | = | -20 | * | (100 | / | 291) | = | -6.87285222 | ||
| 6 | 21153 | 2523 | - | 2552 | = | -29 | * | (76 | / | 291) | = | -7.57388314 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Castaic Elementary | -19 | ||||||||||||
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 | 21128 | 2433 | - | 2436 | = | -3 | * | (76 | / | 299) | = | -0.76254181 | ||
| 4 | 21130 | 2479 | - | 2485 | = | -6 | * | (52 | / | 299) | = | -1.04347826 | ||
| 5 | 21132 | 2502 | - | 2528 | = | -26 | * | (69 | / | 299) | = | -5.99999998 | ||
| 6 | 21134 | 2556 | - | 2552 | = | 4 | * | (102 | / | 299) | = | 1.36454849 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Castaic Elementary | -6 | ||||||||||||
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 | 21301 | 2437 | - | 2436 | = | 1 | * | (52 | / | 257) | = | 0.20233463 | ||
| 4 | 21302 | 2479 | - | 2485 | = | -6 | * | (77 | / | 257) | = | -1.79766536 | ||
| 5 | 21303 | 2517 | - | 2528 | = | -11 | * | (51 | / | 257) | = | -2.18287937 | ||
| 6 | 21304 | 2538 | - | 2552 | = | -14 | * | (77 | / | 257) | = | -4.19455252 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Castaic Elementary | -8 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -20 | -5 | -19 | -6 | -8 | -58.0 | -11.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 9.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -32.6
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 | 13% | 14% | 13% | 18% | 18% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Castaic Union 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.
Castaic Elementary math proficiency
Zero+ meets standard.
10% less $meal
11% less $meal
10% less $meal
16% less $meal
16% 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 Castaic Union (3)
| Castaic Elementary | Live Oak Elementary | Northlake Hills Elementary |