Ralph Bunche Elementary (Data source)
Source data for Ralph Bunche 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 | 1165423 | 2389 | - | 2436 | = | -47 | * | (48 | / | 264) | = | -8.54545451 | ||
| 4 | 1165424 | 2403 | - | 2485 | = | -82 | * | (72 | / | 264) | = | -22.3636363 | ||
| 5 | 1165427 | 2420 | - | 2528 | = | -108 | * | (49 | / | 264) | = | -20.04545448 | ||
| 6 | 1165428 | 2473 | - | 2552 | = | -79 | * | (58 | / | 264) | = | -17.35606055 | ||
| 7 | 1165431 | 2487 | - | 2567 | = | -80 | * | (37 | / | 264) | = | -11.2121212 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ralph Bunche Elementary | -80 | ||||||||||||
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 | 36288 | 2387 | - | 2436 | = | -49 | * | (55 | / | 245) | = | -10.99999996 | ||
| 4 | 36290 | 2427 | - | 2485 | = | -58 | * | (40 | / | 245) | = | -9.46938775 | ||
| 5 | 36291 | 2417 | - | 2528 | = | -111 | * | (69 | / | 245) | = | -31.26122448 | ||
| 6 | 36294 | 2455 | - | 2552 | = | -97 | * | (27 | / | 245) | = | -10.68979586 | ||
| 7 | 36295 | 2466 | - | 2567 | = | -101 | * | (34 | / | 245) | = | -14.01632651 | ||
| 8 | 36298 | 2517 | - | 2586 | = | -69 | * | (20 | / | 245) | = | -5.63265306 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ralph Bunche Elementary | -82 | ||||||||||||
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 | 37047 | 2424 | - | 2436 | = | -12 | * | (46 | / | 228) | = | -2.42105262 | ||
| 4 | 37049 | 2403 | - | 2485 | = | -82 | * | (55 | / | 228) | = | -19.78070174 | ||
| 5 | 37052 | 2435 | - | 2528 | = | -93 | * | (39 | / | 228) | = | -15.90789468 | ||
| 6 | 37053 | 2437 | - | 2552 | = | -115 | * | (38 | / | 228) | = | -19.16666659 | ||
| 7 | 37056 | 2473 | - | 2567 | = | -94 | * | (25 | / | 228) | = | -10.30701747 | ||
| 8 | 37057 | 2500 | - | 2586 | = | -86 | * | (25 | / | 228) | = | -9.42982449 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ralph Bunche Elementary | -77 | ||||||||||||
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 | 37019 | 2396 | - | 2436 | = | -40 | * | (37 | / | 226) | = | -6.54867256 | ||
| 4 | 37021 | 2472 | - | 2485 | = | -13 | * | (44 | / | 226) | = | -2.53097345 | ||
| 5 | 37023 | 2401 | - | 2528 | = | -127 | * | (54 | / | 226) | = | -30.34513273 | ||
| 6 | 37025 | 2460 | - | 2552 | = | -92 | * | (32 | / | 226) | = | -13.02654864 | ||
| 7 | 37027 | 2495 | - | 2567 | = | -72 | * | (33 | / | 226) | = | -10.51327433 | ||
| 8 | 37029 | 2498 | - | 2586 | = | -88 | * | (26 | / | 226) | = | -10.12389374 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ralph Bunche Elementary | -73 | ||||||||||||
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 | 37225 | 2396 | - | 2436 | = | -40 | * | (62 | / | 245) | = | -10.12244896 | ||
| 4 | 37226 | 2456 | - | 2485 | = | -29 | * | (33 | / | 245) | = | -3.90612243 | ||
| 5 | 37227 | 2542 | - | 2528 | = | 14 | * | (44 | / | 245) | = | 2.5142857 | ||
| 6 | 37228 | 2478 | - | 2552 | = | -74 | * | (48 | / | 245) | = | -14.49795916 | ||
| 7 | 37229 | 2509 | - | 2567 | = | -58 | * | (25 | / | 245) | = | -5.91836733 | ||
| 8 | 37230 | 2525 | - | 2586 | = | -61 | * | (33 | / | 245) | = | -8.2163265 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ralph Bunche Elementary | -40 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -80 | -82 | -77 | -73 | -40 | -352.0 | -70.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -19.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -121.4
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 | 80% | 78% | 72% | 75% | 77% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Compton 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.
Ralph Bunche Elementary math proficiency
Zero+ meets standard.
72% less $meal
72% less $meal
66% less $meal
70% less $meal
72% 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.