Northlake Hills Elementary (Data source)
Source data for Northlake Hills 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 | 653821 | 2464 | - | 2436 | = | 28 | * | (106 | / | 290) | = | 10.23448275 | ||
| 4 | 653823 | 2471 | - | 2485 | = | -14 | * | (90 | / | 290) | = | -4.34482758 | ||
| 5 | 653825 | 2518 | - | 2528 | = | -10 | * | (94 | / | 290) | = | -3.24137931 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Northlake Hills Elementary | 3 | ||||||||||||
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 | 20776 | 2436 | - | 2436 | = | 0 | * | (87 | / | 364) | = | 0.0 | ||
| 4 | 20778 | 2501 | - | 2485 | = | 16 | * | (97 | / | 364) | = | 4.26373626 | ||
| 5 | 20780 | 2481 | - | 2528 | = | -47 | * | (87 | / | 364) | = | -11.23351648 | ||
| 6 | 20781 | 2540 | - | 2552 | = | -12 | * | (93 | / | 364) | = | -3.06593406 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Northlake Hills Elementary | -10 | ||||||||||||
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 | 21137 | 2449 | - | 2436 | = | 13 | * | (77 | / | 338) | = | 2.96153845 | ||
| 4 | 21140 | 2489 | - | 2485 | = | 4 | * | (79 | / | 338) | = | 0.93491124 | ||
| 5 | 21141 | 2520 | - | 2528 | = | -8 | * | (101 | / | 338) | = | -2.39053254 | ||
| 6 | 21144 | 2538 | - | 2552 | = | -14 | * | (81 | / | 338) | = | -3.35502958 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Northlake Hills 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 | 21112 | 2469 | - | 2436 | = | 33 | * | (63 | / | 320) | = | 6.496875 | ||
| 4 | 21114 | 2518 | - | 2485 | = | 33 | * | (74 | / | 320) | = | 7.63125 | ||
| 5 | 21116 | 2538 | - | 2528 | = | 10 | * | (81 | / | 320) | = | 2.53125 | ||
| 6 | 21118 | 2538 | - | 2552 | = | -14 | * | (102 | / | 320) | = | -4.4625 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Northlake Hills Elementary | 12 | ||||||||||||
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 | 21287 | 2466 | - | 2436 | = | 30 | * | (67 | / | 282) | = | 7.12765956 | ||
| 4 | 21288 | 2508 | - | 2485 | = | 23 | * | (65 | / | 282) | = | 5.30141842 | ||
| 5 | 21289 | 2549 | - | 2528 | = | 21 | * | (69 | / | 282) | = | 5.13829787 | ||
| 6 | 21290 | 2540 | - | 2552 | = | -12 | * | (81 | / | 282) | = | -3.4468085 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Northlake Hills Elementary | 14 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 3 | -10 | -2 | 12 | 14 | 17.0 | 3.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 30.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -23.6
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 | 37% | 37% | 36% | 42% | 39% |
| 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.
Northlake Hills Elementary math proficiency
Zero+ meets standard.
30% less $meal
31% less $meal
30% less $meal
36% less $meal
32% 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 |