Bracher Elementary (Data source)
Source data for Bracher 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 | 2720064 | 2434 | - | 2436 | = | -2 | * | (55 | / | 178) | = | -0.61797753 | ||
| 4 | 2720065 | 2473 | - | 2485 | = | -12 | * | (62 | / | 178) | = | -4.17977527 | ||
| 5 | 2720068 | 2496 | - | 2528 | = | -32 | * | (61 | / | 178) | = | -10.96629213 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bracher Elementary | -16 | ||||||||||||
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 | 82767 | 2464 | - | 2436 | = | 28 | * | (63 | / | 178) | = | 9.91011235 | ||
| 4 | 82768 | 2477 | - | 2485 | = | -8 | * | (58 | / | 178) | = | -2.60674157 | ||
| 5 | 82770 | 2496 | - | 2528 | = | -32 | * | (57 | / | 178) | = | -10.24719101 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bracher Elementary | -3 | ||||||||||||
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 | 85077 | 2435 | - | 2436 | = | -1 | * | (61 | / | 177) | = | -0.34463277 | ||
| 4 | 85079 | 2478 | - | 2485 | = | -7 | * | (63 | / | 177) | = | -2.49152542 | ||
| 5 | 85080 | 2511 | - | 2528 | = | -17 | * | (53 | / | 177) | = | -5.09039548 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bracher Elementary | -8 | ||||||||||||
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 | 85294 | 2484 | - | 2436 | = | 48 | * | (55 | / | 168) | = | 15.7142857 | ||
| 4 | 85297 | 2462 | - | 2485 | = | -23 | * | (55 | / | 168) | = | -7.5297619 | ||
| 5 | 85298 | 2508 | - | 2528 | = | -20 | * | (58 | / | 168) | = | -6.9047619 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bracher Elementary | 1 | ||||||||||||
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 | 85890 | 2430 | - | 2436 | = | -6 | * | (54 | / | 170) | = | -1.90588235 | ||
| 4 | 85891 | 2517 | - | 2485 | = | 32 | * | (59 | / | 170) | = | 11.10588234 | ||
| 5 | 85892 | 2480 | - | 2528 | = | -48 | * | (57 | / | 170) | = | -16.09411762 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bracher Elementary | -7 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -16 | -3 | -8 | 1 | -7 | -33.0 | -6.6 |
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: -24.6
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 | 51% | 54% | 50% | 52% | 47% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Clara Unified school district | County of Santa Clara
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.
Bracher Elementary math proficiency
Zero+ meets standard.
40% less $meal
42% less $meal
37% less $meal
43% less $meal
40% 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.