Nelson Elementary (Data source)
Source data for 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 | 1176094 | 2413 | - | 2436 | = | -23 | * | (74 | / | 242) | = | -7.03305783 | ||
| 4 | 1176095 | 2438 | - | 2485 | = | -47 | * | (53 | / | 242) | = | -10.29338841 | ||
| 5 | 1176098 | 2433 | - | 2528 | = | -95 | * | (50 | / | 242) | = | -19.62809915 | ||
| 6 | 1176099 | 2473 | - | 2552 | = | -79 | * | (65 | / | 242) | = | -21.21900824 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Nelson Elementary | -58 | ||||||||||||
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 | 36627 | 2374 | - | 2436 | = | -62 | * | (39 | / | 189) | = | -12.79365077 | ||
| 4 | 36629 | 2448 | - | 2485 | = | -37 | * | (65 | / | 189) | = | -12.72486769 | ||
| 5 | 36631 | 2461 | - | 2528 | = | -67 | * | (49 | / | 189) | = | -17.37037035 | ||
| 6 | 36634 | 2516 | - | 2552 | = | -36 | * | (36 | / | 189) | = | -6.85714284 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Nelson Elementary | -50 | ||||||||||||
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 | 37393 | 2387 | - | 2436 | = | -49 | * | (55 | / | 200) | = | -13.475 | ||
| 4 | 37396 | 2426 | - | 2485 | = | -59 | * | (37 | / | 200) | = | -10.915 | ||
| 5 | 37397 | 2462 | - | 2528 | = | -66 | * | (61 | / | 200) | = | -20.13 | ||
| 6 | 37399 | 2510 | - | 2552 | = | -42 | * | (47 | / | 200) | = | -9.87 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Nelson Elementary | -54 | ||||||||||||
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 | 37346 | 2390 | - | 2436 | = | -46 | * | (33 | / | 175) | = | -8.67428569 | ||
| 4 | 37348 | 2435 | - | 2485 | = | -50 | * | (49 | / | 175) | = | -14.0 | ||
| 5 | 37350 | 2463 | - | 2528 | = | -65 | * | (38 | / | 175) | = | -14.11428571 | ||
| 6 | 37352 | 2501 | - | 2552 | = | -51 | * | (55 | / | 175) | = | -16.02857141 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Nelson Elementary | -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 | 37551 | 2417 | - | 2436 | = | -19 | * | (51 | / | 166) | = | -5.83734939 | ||
| 4 | 37552 | 2416 | - | 2485 | = | -69 | * | (34 | / | 166) | = | -14.13253011 | ||
| 5 | 37553 | 2432 | - | 2528 | = | -96 | * | (49 | / | 166) | = | -28.33734931 | ||
| 6 | 37554 | 2519 | - | 2552 | = | -33 | * | (32 | / | 166) | = | -6.36144577 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Nelson Elementary | -55 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -58 | -50 | -54 | -53 | -55 | -270.0 | -54.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -48.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -60.0
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 | 93% | 92% | 90% | 89% | 92% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Hacienda la Puente Unified 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.
Nelson Elementary math proficiency
Zero+ meets standard.
80% less $meal
83% less $meal
79% less $meal
79% 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.