Marlton (Data source)
Source data for Marlton
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 | 994690 | 2350 | - | 2436 | = | -86 | * | (27 | / | 106) | = | -21.90566037 | ||
| 4 | 994693 | 2408 | - | 2485 | = | -77 | * | (25 | / | 106) | = | -18.16037731 | ||
| 5 | 994694 | 2434 | - | 2528 | = | -94 | * | (19 | / | 106) | = | -16.8490566 | ||
| 6 | 994697 | 0 | - | 2552 | = | * | (6 | / | 106) | = | ||||
| 7 | 994698 | 0 | - | 2567 | = | * | (10 | / | 106) | = | ||||
| 8 | 994701 | 2333 | - | 2586 | = | -253 | * | (12 | / | 106) | = | -28.64150939 | ||
| 11 | 994702 | 0 | - | 2628 | = | * | (7 | / | 106) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Marlton | -86 | ||||||||||||
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 | 31406 | 2337 | - | 2436 | = | -99 | * | (19 | / | 107) | = | -17.57943921 | ||
| 4 | 31409 | 2411 | - | 2485 | = | -74 | * | (22 | / | 107) | = | -15.21495322 | ||
| 5 | 31410 | 2432 | - | 2528 | = | -96 | * | (27 | / | 107) | = | -24.22429901 | ||
| 6 | 31413 | 0 | - | 2552 | = | * | (6 | / | 107) | = | ||||
| 7 | 31415 | 0 | - | 2567 | = | * | (8 | / | 107) | = | ||||
| 8 | 31417 | 2332 | - | 2586 | = | -254 | * | (12 | / | 107) | = | -28.48598113 | ||
| 11 | 31418 | 2395 | - | 2628 | = | -233 | * | (13 | / | 107) | = | -28.30841119 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Marlton | -114 | ||||||||||||
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 | 31965 | 2362 | - | 2436 | = | -74 | * | (17 | / | 88) | = | -14.29545453 | ||
| 4 | 31967 | 2373 | - | 2485 | = | -112 | * | (17 | / | 88) | = | -21.63636362 | ||
| 5 | 31969 | 2434 | - | 2528 | = | -94 | * | (21 | / | 88) | = | -22.43181812 | ||
| 6 | 31972 | 2301 | - | 2552 | = | -251 | * | (12 | / | 88) | = | -34.22727264 | ||
| 7 | 31974 | 0 | - | 2567 | = | * | (0 | / | 88) | = | ||||
| 8 | 31976 | 0 | - | 2586 | = | * | (0 | / | 88) | = | ||||
| 11 | 31978 | 0 | - | 2628 | = | * | (0 | / | 88) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Marlton | -93 | ||||||||||||
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 | 31997 | 2382 | - | 2436 | = | -54 | * | (27 | / | 106) | = | -13.75471697 | ||
| 4 | 31999 | 2379 | - | 2485 | = | -106 | * | (18 | / | 106) | = | -17.99999992 | ||
| 5 | 32001 | 2385 | - | 2528 | = | -143 | * | (13 | / | 106) | = | -17.53773579 | ||
| 6 | 32003 | 2454 | - | 2552 | = | -98 | * | (19 | / | 106) | = | -17.56603773 | ||
| 7 | 32005 | 2295 | - | 2567 | = | -272 | * | (13 | / | 106) | = | -33.35849045 | ||
| 8 | 32007 | 0 | - | 2586 | = | * | (0 | / | 106) | = | ||||
| 11 | 32009 | 0 | - | 2628 | = | * | (0 | / | 106) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Marlton | -100 | ||||||||||||
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 | 32182 | 2336 | - | 2436 | = | -100 | * | (18 | / | 102) | = | -17.6470588 | ||
| 4 | 32183 | 2397 | - | 2485 | = | -88 | * | (27 | / | 102) | = | -23.29411762 | ||
| 5 | 32184 | 2402 | - | 2528 | = | -126 | * | (17 | / | 102) | = | -20.99999992 | ||
| 6 | 32185 | 2367 | - | 2552 | = | -185 | * | (15 | / | 102) | = | -27.20588226 | ||
| 7 | 32186 | 0 | - | 2567 | = | * | (4 | / | 102) | = | ||||
| 8 | 32187 | 2357 | - | 2586 | = | -229 | * | (11 | / | 102) | = | -24.69607837 | ||
| 11 | 32188 | 0 | - | 2628 | = | * | (10 | / | 102) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Marlton | -114 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -86 | -114 | -93 | -100 | -114 | -507.0 | -101.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -65.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -137.4
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% | 89% | 89% | 97% | 96% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Los Angeles 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.
Marlton math proficiency
Zero+ meets standard.
73% less $meal
77% less $meal
79% less $meal
91% less $meal
91% 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.