Blandford Elementary (Data source)
Source data for Blandford 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 | 1183104 | 2471 | - | 2436 | = | 35 | * | (101 | / | 391) | = | 9.0409207 | ||
| 4 | 1183105 | 2515 | - | 2485 | = | 30 | * | (103 | / | 391) | = | 7.90281327 | ||
| 5 | 1183108 | 2530 | - | 2528 | = | 2 | * | (94 | / | 391) | = | 0.48081841 | ||
| 6 | 1183109 | 2596 | - | 2552 | = | 44 | * | (93 | / | 391) | = | 10.46547313 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Blandford Elementary | 28 | ||||||||||||
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 | 36826 | 2469 | - | 2436 | = | 33 | * | (88 | / | 371) | = | 7.82749325 | ||
| 4 | 36827 | 2539 | - | 2485 | = | 54 | * | (98 | / | 371) | = | 14.26415092 | ||
| 5 | 36829 | 2567 | - | 2528 | = | 39 | * | (101 | / | 371) | = | 10.61725064 | ||
| 6 | 36832 | 2600 | - | 2552 | = | 48 | * | (84 | / | 371) | = | 10.86792451 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Blandford Elementary | 44 | ||||||||||||
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 | 37604 | 2470 | - | 2436 | = | 34 | * | (122 | / | 408) | = | 10.16666664 | ||
| 4 | 37605 | 2517 | - | 2485 | = | 32 | * | (91 | / | 408) | = | 7.13725488 | ||
| 5 | 37607 | 2570 | - | 2528 | = | 42 | * | (98 | / | 408) | = | 10.08823528 | ||
| 6 | 37609 | 2609 | - | 2552 | = | 57 | * | (97 | / | 408) | = | 13.55147059 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Blandford Elementary | 41 | ||||||||||||
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 | 37548 | 2454 | - | 2436 | = | 18 | * | (93 | / | 386) | = | 4.33678756 | ||
| 4 | 37551 | 2530 | - | 2485 | = | 45 | * | (115 | / | 386) | = | 13.40673575 | ||
| 5 | 37552 | 2561 | - | 2528 | = | 33 | * | (93 | / | 386) | = | 7.95077719 | ||
| 6 | 37555 | 2626 | - | 2552 | = | 74 | * | (85 | / | 386) | = | 16.29533672 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Blandford Elementary | 42 | ||||||||||||
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 | 37759 | 2474 | - | 2436 | = | 38 | * | (78 | / | 371) | = | 7.98921831 | ||
| 4 | 37760 | 2505 | - | 2485 | = | 20 | * | (90 | / | 371) | = | 4.85175202 | ||
| 5 | 37761 | 2562 | - | 2528 | = | 34 | * | (113 | / | 371) | = | 10.35579514 | ||
| 6 | 37762 | 2610 | - | 2552 | = | 58 | * | (90 | / | 371) | = | 14.07008086 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Blandford Elementary | 37 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 28 | 44 | 41 | 42 | 37 | 192.0 | 38.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 56.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 20.4
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 | 41% | 44% | 51% | 54% | 55% |
| 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.
Blandford Elementary math proficiency
Zero+ meets standard.
29% less $meal
33% less $meal
38% less $meal
47% less $meal
47% 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.