Mark Twain Elementary (Data source)
Source data for Mark Twain 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 | 1027314 | 2412 | - | 2436 | = | -24 | * | (86 | / | 348) | = | -5.93103446 | ||
| 4 | 1027315 | 2439 | - | 2485 | = | -46 | * | (90 | / | 348) | = | -11.89655169 | ||
| 5 | 1027318 | 2460 | - | 2528 | = | -68 | * | (90 | / | 348) | = | -17.58620685 | ||
| 6 | 1027319 | 2483 | - | 2552 | = | -69 | * | (82 | / | 348) | = | -16.25862063 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Mark Twain 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 | 32259 | 2408 | - | 2436 | = | -28 | * | (87 | / | 357) | = | -6.82352938 | ||
| 4 | 32261 | 2437 | - | 2485 | = | -48 | * | (87 | / | 357) | = | -11.69747894 | ||
| 5 | 32263 | 2457 | - | 2528 | = | -71 | * | (94 | / | 357) | = | -18.69467786 | ||
| 6 | 32265 | 2506 | - | 2552 | = | -46 | * | (89 | / | 357) | = | -11.46778707 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Mark Twain Elementary | -49 | ||||||||||||
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 | 32811 | 2402 | - | 2436 | = | -34 | * | (86 | / | 353) | = | -8.28328611 | ||
| 4 | 32812 | 2432 | - | 2485 | = | -53 | * | (85 | / | 353) | = | -12.76203965 | ||
| 5 | 32814 | 2438 | - | 2528 | = | -90 | * | (87 | / | 353) | = | -22.18130307 | ||
| 6 | 32816 | 2483 | - | 2552 | = | -69 | * | (95 | / | 353) | = | -18.5694051 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Mark Twain Elementary | -62 | ||||||||||||
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 | 32827 | 2429 | - | 2436 | = | -7 | * | (91 | / | 349) | = | -1.8252149 | ||
| 4 | 32828 | 2451 | - | 2485 | = | -34 | * | (90 | / | 349) | = | -8.7679083 | ||
| 5 | 32830 | 2447 | - | 2528 | = | -81 | * | (85 | / | 349) | = | -19.72779365 | ||
| 6 | 32833 | 2499 | - | 2552 | = | -53 | * | (83 | / | 349) | = | -12.6045845 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Mark Twain Elementary | -43 | ||||||||||||
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 | 33001 | 2428 | - | 2436 | = | -8 | * | (85 | / | 347) | = | -1.95965418 | ||
| 4 | 33002 | 2440 | - | 2485 | = | -45 | * | (89 | / | 347) | = | -11.54178671 | ||
| 5 | 33003 | 2462 | - | 2528 | = | -66 | * | (87 | / | 347) | = | -16.54755043 | ||
| 6 | 33004 | 2515 | - | 2552 | = | -37 | * | (86 | / | 347) | = | -9.17002879 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Mark Twain Elementary | -39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -52 | -49 | -62 | -43 | -39 | -245.0 | -49.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -25.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -73.0
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 | 95% | 95% | 95% | 95% | 95% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lynwood 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.
Mark Twain Elementary math proficiency
Zero+ meets standard.
87% less $meal
88% less $meal
84% less $meal
89% less $meal
88% 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.