Rorimer Elementary (Data source)
Source data for Rorimer 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 | 1185226 | 2433 | - | 2436 | = | -3 | * | (79 | / | 300) | = | -0.79 | ||
| 4 | 1185227 | 2435 | - | 2485 | = | -50 | * | (82 | / | 300) | = | -13.66666665 | ||
| 5 | 1185230 | 2448 | - | 2528 | = | -80 | * | (71 | / | 300) | = | -18.93333328 | ||
| 6 | 1185231 | 2479 | - | 2552 | = | -73 | * | (68 | / | 300) | = | -16.54666662 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rorimer Elementary | -50 | ||||||||||||
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 | 36892 | 2410 | - | 2436 | = | -26 | * | (76 | / | 308) | = | -6.4155844 | ||
| 4 | 36893 | 2469 | - | 2485 | = | -16 | * | (78 | / | 308) | = | -4.05194805 | ||
| 5 | 36896 | 2459 | - | 2528 | = | -69 | * | (78 | / | 308) | = | -17.47402596 | ||
| 6 | 36898 | 2494 | - | 2552 | = | -58 | * | (76 | / | 308) | = | -14.31168827 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rorimer Elementary | -42 | ||||||||||||
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 | 37670 | 2428 | - | 2436 | = | -8 | * | (87 | / | 312) | = | -2.23076922 | ||
| 4 | 37672 | 2419 | - | 2485 | = | -66 | * | (65 | / | 312) | = | -13.74999998 | ||
| 5 | 37674 | 2465 | - | 2528 | = | -63 | * | (80 | / | 312) | = | -16.15384613 | ||
| 6 | 37675 | 2477 | - | 2552 | = | -75 | * | (80 | / | 312) | = | -19.2307692 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rorimer Elementary | -51 | ||||||||||||
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 | 37614 | 2431 | - | 2436 | = | -5 | * | (71 | / | 289) | = | -1.2283737 | ||
| 4 | 37617 | 2463 | - | 2485 | = | -22 | * | (84 | / | 289) | = | -6.39446366 | ||
| 5 | 37618 | 2451 | - | 2528 | = | -77 | * | (62 | / | 289) | = | -16.51903107 | ||
| 6 | 37621 | 2493 | - | 2552 | = | -59 | * | (72 | / | 289) | = | -14.69896193 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rorimer Elementary | -39 | ||||||||||||
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 | 37825 | 2405 | - | 2436 | = | -31 | * | (63 | / | 268) | = | -7.28731341 | ||
| 4 | 37826 | 2488 | - | 2485 | = | 3 | * | (68 | / | 268) | = | 0.76119403 | ||
| 5 | 37827 | 2498 | - | 2528 | = | -30 | * | (80 | / | 268) | = | -8.95522386 | ||
| 6 | 37828 | 2506 | - | 2552 | = | -46 | * | (57 | / | 268) | = | -9.78358208 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rorimer Elementary | -25 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -50 | -42 | -51 | -39 | -25 | -207.0 | -41.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -11.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -71.4
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 | 90% | 91% | 91% | 94% | 95% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rowland 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.
Rorimer Elementary math proficiency
Zero+ meets standard.
79% less $meal
80% less $meal
80% less $meal
83% less $meal
84% 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.