Ada S. Nelson Elementary (Data source)
Source data for Ada S. Nelson 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 | 1020843 | 2381 | - | 2436 | = | -55 | * | (63 | / | 233) | = | -14.87124463 | ||
| 4 | 1020844 | 2441 | - | 2485 | = | -44 | * | (61 | / | 233) | = | -11.5193133 | ||
| 5 | 1020847 | 2448 | - | 2528 | = | -80 | * | (57 | / | 233) | = | -19.57081544 | ||
| 6 | 1020848 | 2490 | - | 2552 | = | -62 | * | (52 | / | 233) | = | -13.83690983 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ada S. Nelson Elementary | -60 | ||||||||||||
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 | 32042 | 2424 | - | 2436 | = | -12 | * | (63 | / | 239) | = | -3.16317991 | ||
| 4 | 32045 | 2441 | - | 2485 | = | -44 | * | (62 | / | 239) | = | -11.4142259 | ||
| 5 | 32046 | 2481 | - | 2528 | = | -47 | * | (61 | / | 239) | = | -11.99581588 | ||
| 6 | 32049 | 2507 | - | 2552 | = | -45 | * | (53 | / | 239) | = | -9.97907949 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ada S. Nelson Elementary | -37 | ||||||||||||
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 | 32579 | 2429 | - | 2436 | = | -7 | * | (46 | / | 235) | = | -1.37021276 | ||
| 4 | 32580 | 2469 | - | 2485 | = | -16 | * | (64 | / | 235) | = | -4.3574468 | ||
| 5 | 32583 | 2489 | - | 2528 | = | -39 | * | (63 | / | 235) | = | -10.45531913 | ||
| 6 | 32584 | 2557 | - | 2552 | = | 5 | * | (62 | / | 235) | = | 1.31914894 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ada S. Nelson Elementary | -15 | ||||||||||||
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 | 32595 | 2424 | - | 2436 | = | -12 | * | (46 | / | 218) | = | -2.53211009 | ||
| 4 | 32597 | 2469 | - | 2485 | = | -16 | * | (50 | / | 218) | = | -3.66972477 | ||
| 5 | 32599 | 2492 | - | 2528 | = | -36 | * | (63 | / | 218) | = | -10.4036697 | ||
| 6 | 32601 | 2532 | - | 2552 | = | -20 | * | (59 | / | 218) | = | -5.41284402 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ada S. Nelson Elementary | -22 | ||||||||||||
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 | 32775 | 2442 | - | 2436 | = | 6 | * | (50 | / | 208) | = | 1.44230769 | ||
| 4 | 32776 | 2469 | - | 2485 | = | -16 | * | (47 | / | 208) | = | -3.61538461 | ||
| 5 | 32777 | 2504 | - | 2528 | = | -24 | * | (50 | / | 208) | = | -5.76923076 | ||
| 6 | 32778 | 2533 | - | 2552 | = | -19 | * | (61 | / | 208) | = | -5.57211537 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ada S. Nelson Elementary | -14 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -60 | -37 | -15 | -22 | -14 | -148.0 | -29.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 27.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -86.6
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 | 79% | 88% | 89% | 83% | 82% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Los Nietos 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.
Ada S. Nelson Elementary math proficiency
Zero+ meets standard.
68% less $meal
79% less $meal
76% less $meal
74% less $meal
79% 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 Los Nietos (3)
| Ada S. Nelson Elementary | Aeolian Elementary | Rancho Santa Gertrudes Elementary |