Joe Michell (Data source)
Source data for Joe Michell
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 | 58160 | 2412 | - | 2436 | = | -24 | * | (73 | / | 336) | = | -5.2142857 | ||
| 4 | 58161 | 2470 | - | 2485 | = | -15 | * | (62 | / | 336) | = | -2.76785714 | ||
| 5 | 58164 | 2463 | - | 2528 | = | -65 | * | (64 | / | 336) | = | -12.38095235 | ||
| 6 | 58165 | 2498 | - | 2552 | = | -54 | * | (56 | / | 336) | = | -8.99999996 | ||
| 7 | 58168 | 2515 | - | 2567 | = | -52 | * | (46 | / | 336) | = | -7.11904757 | ||
| 8 | 58169 | 2512 | - | 2586 | = | -74 | * | (35 | / | 336) | = | -7.70833328 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Joe Michell | -44 | ||||||||||||
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 | 1542 | 2424 | - | 2436 | = | -12 | * | (60 | / | 374) | = | -1.92513368 | ||
| 4 | 1543 | 2457 | - | 2485 | = | -28 | * | (72 | / | 374) | = | -5.3903743 | ||
| 5 | 1545 | 2502 | - | 2528 | = | -26 | * | (62 | / | 374) | = | -4.31016043 | ||
| 6 | 1547 | 2498 | - | 2552 | = | -54 | * | (82 | / | 374) | = | -11.83957214 | ||
| 7 | 1549 | 2530 | - | 2567 | = | -37 | * | (54 | / | 374) | = | -5.34224596 | ||
| 8 | 1551 | 2539 | - | 2586 | = | -47 | * | (44 | / | 374) | = | -5.52941173 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Joe Michell | -34 | ||||||||||||
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 | 1590 | 2434 | - | 2436 | = | -2 | * | (78 | / | 471) | = | -0.33121019 | ||
| 4 | 1591 | 2483 | - | 2485 | = | -2 | * | (86 | / | 471) | = | -0.36518047 | ||
| 5 | 1594 | 2481 | - | 2528 | = | -47 | * | (86 | / | 471) | = | -8.58174095 | ||
| 6 | 1596 | 2534 | - | 2552 | = | -18 | * | (80 | / | 471) | = | -3.05732484 | ||
| 7 | 1597 | 2527 | - | 2567 | = | -40 | * | (87 | / | 471) | = | -7.388535 | ||
| 8 | 1600 | 2561 | - | 2586 | = | -25 | * | (54 | / | 471) | = | -2.86624203 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Joe Michell | -23 | ||||||||||||
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 | 1605 | 2457 | - | 2436 | = | 21 | * | (73 | / | 510) | = | 3.00588233 | ||
| 4 | 1607 | 2491 | - | 2485 | = | 6 | * | (90 | / | 510) | = | 1.05882353 | ||
| 5 | 1609 | 2502 | - | 2528 | = | -26 | * | (90 | / | 510) | = | -4.58823529 | ||
| 6 | 1611 | 2497 | - | 2552 | = | -55 | * | (90 | / | 510) | = | -9.70588234 | ||
| 7 | 1613 | 2567 | - | 2567 | = | 0 | * | (84 | / | 510) | = | 0.0 | ||
| 8 | 1615 | 2541 | - | 2586 | = | -45 | * | (83 | / | 510) | = | -7.32352941 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Joe Michell | -18 | ||||||||||||
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 | 1634 | 2438 | - | 2436 | = | 2 | * | (81 | / | 522) | = | 0.31034483 | ||
| 4 | 1635 | 2512 | - | 2485 | = | 27 | * | (81 | / | 522) | = | 4.18965515 | ||
| 5 | 1636 | 2512 | - | 2528 | = | -16 | * | (94 | / | 522) | = | -2.88122605 | ||
| 6 | 1637 | 2521 | - | 2552 | = | -31 | * | (86 | / | 522) | = | -5.10727967 | ||
| 7 | 1638 | 2521 | - | 2567 | = | -46 | * | (91 | / | 522) | = | -8.01915705 | ||
| 8 | 1639 | 2594 | - | 2586 | = | 8 | * | (89 | / | 522) | = | 1.36398467 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Joe Michell | -10 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -44 | -34 | -23 | -18 | -10 | -129.0 | -25.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 13.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -64.8
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 | 35% | 31% | 26% | 23% | 20% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Livermore Valley Joint Unified school district | County of Alameda
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.
Joe Michell math proficiency
Zero+ meets standard.
31% less $meal
25% less $meal
21% less $meal
19% less $meal
16% 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.