Bancroft Middle (Data source)
Source data for Bancroft Middle
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 |
||
| 6 | 108001 | 2459 | - | 2552 | = | -93 | * | (251 | / | 831) | = | -28.0902527 | ||
| 7 | 108002 | 2458 | - | 2567 | = | -109 | * | (283 | / | 831) | = | -37.12033684 | ||
| 8 | 108004 | 2478 | - | 2586 | = | -108 | * | (297 | / | 831) | = | -38.59927798 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bancroft Middle | -104 | ||||||||||||
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 |
||
| 6 | 3033 | 2466 | - | 2552 | = | -86 | * | (331 | / | 846) | = | -33.64775413 | ||
| 7 | 3035 | 2471 | - | 2567 | = | -96 | * | (246 | / | 846) | = | -27.91489354 | ||
| 8 | 3037 | 2485 | - | 2586 | = | -101 | * | (269 | / | 846) | = | -32.1146572 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bancroft Middle | -94 | ||||||||||||
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 |
||
| 6 | 3129 | 2468 | - | 2552 | = | -84 | * | (326 | / | 919) | = | -29.79760602 | ||
| 7 | 3131 | 2479 | - | 2567 | = | -88 | * | (343 | / | 919) | = | -32.84439602 | ||
| 8 | 3134 | 2466 | - | 2586 | = | -120 | * | (250 | / | 919) | = | -32.6441784 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bancroft Middle | -95 | ||||||||||||
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 |
||
| 6 | 3127 | 2437 | - | 2552 | = | -115 | * | (350 | / | 1047) | = | -38.44317095 | ||
| 7 | 3129 | 2470 | - | 2567 | = | -97 | * | (339 | / | 1047) | = | -31.4068767 | ||
| 8 | 3131 | 2465 | - | 2586 | = | -121 | * | (358 | / | 1047) | = | -41.37344784 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bancroft Middle | -111 | ||||||||||||
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 |
||
| 6 | 3155 | 2462 | - | 2552 | = | -90 | * | (317 | / | 1005) | = | -28.38805965 | ||
| 7 | 3156 | 2470 | - | 2567 | = | -97 | * | (352 | / | 1005) | = | -33.97412933 | ||
| 8 | 3157 | 2493 | - | 2586 | = | -93 | * | (336 | / | 1005) | = | -31.09253729 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bancroft Middle | -93 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -104 | -94 | -95 | -111 | -93 | -497.0 | -99.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -78.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -120.4
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 | 64% | 73% | 66% | 68% | 66% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Leandro 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.
Bancroft Middle math proficiency
Zero+ meets standard.
53% less $meal
60% less $meal
53% less $meal
58% less $meal
55% 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.
Intermediate/Middle Schools (Public) schools in San Leandro Unified (2)
| Bancroft Middle | John Muir Middle |