Centinela Elementary (Data source)
Source data for Centinela 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 | 728795 | 2395 | - | 2436 | = | -41 | * | (97 | / | 383) | = | -10.38381199 | ||
| 4 | 728796 | 2425 | - | 2485 | = | -60 | * | (101 | / | 383) | = | -15.82245426 | ||
| 5 | 728799 | 2448 | - | 2528 | = | -80 | * | (90 | / | 383) | = | -18.7989556 | ||
| 6 | 728800 | 2469 | - | 2552 | = | -83 | * | (95 | / | 383) | = | -20.58746733 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Centinela Elementary | -66 | ||||||||||||
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 | 22957 | 2369 | - | 2436 | = | -67 | * | (100 | / | 366) | = | -18.30601088 | ||
| 4 | 22959 | 2414 | - | 2485 | = | -71 | * | (92 | / | 366) | = | -17.84699452 | ||
| 5 | 22961 | 2456 | - | 2528 | = | -72 | * | (97 | / | 366) | = | -19.08196718 | ||
| 6 | 22963 | 2486 | - | 2552 | = | -66 | * | (77 | / | 366) | = | -13.88524586 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Centinela Elementary | -69 | ||||||||||||
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 | 23407 | 2377 | - | 2436 | = | -59 | * | (90 | / | 361) | = | -14.70914126 | ||
| 4 | 23409 | 2418 | - | 2485 | = | -67 | * | (100 | / | 361) | = | -18.55955677 | ||
| 5 | 23411 | 2444 | - | 2528 | = | -84 | * | (87 | / | 361) | = | -20.24376724 | ||
| 6 | 23413 | 2518 | - | 2552 | = | -34 | * | (84 | / | 361) | = | -7.91135732 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Centinela Elementary | -61 | ||||||||||||
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 | 23417 | 2363 | - | 2436 | = | -73 | * | (93 | / | 364) | = | -18.65109887 | ||
| 4 | 23419 | 2434 | - | 2485 | = | -51 | * | (92 | / | 364) | = | -12.89010985 | ||
| 5 | 23421 | 2464 | - | 2528 | = | -64 | * | (99 | / | 364) | = | -17.40659334 | ||
| 6 | 23423 | 2491 | - | 2552 | = | -61 | * | (80 | / | 364) | = | -13.40659336 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Centinela Elementary | -62 | ||||||||||||
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 | 23591 | 2375 | - | 2436 | = | -61 | * | (78 | / | 334) | = | -14.24550897 | ||
| 4 | 23592 | 2428 | - | 2485 | = | -57 | * | (83 | / | 334) | = | -14.16467066 | ||
| 5 | 23593 | 2462 | - | 2528 | = | -66 | * | (85 | / | 334) | = | -16.79640712 | ||
| 6 | 23594 | 2505 | - | 2552 | = | -47 | * | (88 | / | 334) | = | -12.38323349 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Centinela Elementary | -58 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -66 | -69 | -61 | -62 | -58 | -316.0 | -63.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -51.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -75.2
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% | 73% | 83% | 90% | 95% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Inglewood 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.
Centinela Elementary math proficiency
Zero+ meets standard.
74% less $meal
68% less $meal
72% less $meal
86% less $meal
90% 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.