John Blacow Elementary (Data source)
Source data for John Blacow 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 | 29554 | 2425 | - | 2436 | = | -11 | * | (60 | / | 239) | = | -2.76150628 | ||
| 4 | 29555 | 2447 | - | 2485 | = | -38 | * | (73 | / | 239) | = | -11.60669454 | ||
| 5 | 29558 | 2469 | - | 2528 | = | -59 | * | (51 | / | 239) | = | -12.58995814 | ||
| 6 | 29559 | 2541 | - | 2552 | = | -11 | * | (55 | / | 239) | = | -2.53138075 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for John Blacow Elementary | -29 | ||||||||||||
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 | 786 | 2437 | - | 2436 | = | 1 | * | (42 | / | 216) | = | 0.19444444 | ||
| 4 | 787 | 2463 | - | 2485 | = | -22 | * | (57 | / | 216) | = | -5.80555554 | ||
| 5 | 789 | 2493 | - | 2528 | = | -35 | * | (67 | / | 216) | = | -10.85648148 | ||
| 6 | 792 | 2506 | - | 2552 | = | -46 | * | (50 | / | 216) | = | -10.64814813 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for John Blacow Elementary | -27 | ||||||||||||
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 | 839 | 2435 | - | 2436 | = | -1 | * | (47 | / | 206) | = | -0.22815534 | ||
| 4 | 842 | 2452 | - | 2485 | = | -33 | * | (46 | / | 206) | = | -7.36893201 | ||
| 5 | 843 | 2497 | - | 2528 | = | -31 | * | (54 | / | 206) | = | -8.12621358 | ||
| 6 | 845 | 2514 | - | 2552 | = | -38 | * | (59 | / | 206) | = | -10.88349511 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for John Blacow Elementary | -27 | ||||||||||||
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 | 864 | 2443 | - | 2436 | = | 7 | * | (47 | / | 197) | = | 1.67005076 | ||
| 4 | 865 | 2475 | - | 2485 | = | -10 | * | (48 | / | 197) | = | -2.43654822 | ||
| 5 | 868 | 2493 | - | 2528 | = | -35 | * | (48 | / | 197) | = | -8.52791877 | ||
| 6 | 869 | 2505 | - | 2552 | = | -47 | * | (54 | / | 197) | = | -12.88324873 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for John Blacow Elementary | -22 | ||||||||||||
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 | 892 | 2430 | - | 2436 | = | -6 | * | (52 | / | 191) | = | -1.63350785 | ||
| 4 | 893 | 2482 | - | 2485 | = | -3 | * | (48 | / | 191) | = | -0.7539267 | ||
| 5 | 894 | 2505 | - | 2528 | = | -23 | * | (45 | / | 191) | = | -5.41884816 | ||
| 6 | 895 | 2518 | - | 2552 | = | -34 | * | (46 | / | 191) | = | -8.18848166 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for John Blacow Elementary | -16 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -29 | -27 | -27 | -22 | -16 | -121.0 | -24.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -9.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -39.2
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 | 50% | 51% | 39% | 43% | 44% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Fremont 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.
John Blacow Elementary math proficiency
Zero+ meets standard.
39% less $meal
41% less $meal
29% less $meal
33% less $meal
34% 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.