Briarwood Elementary (Data source)
Source data for Briarwood 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 | 2720693 | 2412 | - | 2436 | = | -24 | * | (54 | / | 188) | = | -6.89361701 | ||
| 4 | 2720696 | 2449 | - | 2485 | = | -36 | * | (64 | / | 188) | = | -12.25531912 | ||
| 5 | 2720697 | 2496 | - | 2528 | = | -32 | * | (70 | / | 188) | = | -11.9148936 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Briarwood Elementary | -31 | ||||||||||||
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 | 82782 | 2421 | - | 2436 | = | -15 | * | (60 | / | 166) | = | -5.42168675 | ||
| 4 | 82785 | 2452 | - | 2485 | = | -33 | * | (49 | / | 166) | = | -9.74096383 | ||
| 5 | 82786 | 2489 | - | 2528 | = | -39 | * | (57 | / | 166) | = | -13.39156623 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Briarwood Elementary | -29 | ||||||||||||
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 | 85092 | 2414 | - | 2436 | = | -22 | * | (58 | / | 165) | = | -7.73333332 | ||
| 4 | 85095 | 2460 | - | 2485 | = | -25 | * | (57 | / | 165) | = | -8.63636363 | ||
| 5 | 85096 | 2480 | - | 2528 | = | -48 | * | (50 | / | 165) | = | -14.54545454 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Briarwood Elementary | -31 | ||||||||||||
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 | 85310 | 2461 | - | 2436 | = | 25 | * | (48 | / | 146) | = | 8.21917808 | ||
| 4 | 85313 | 2477 | - | 2485 | = | -8 | * | (47 | / | 146) | = | -2.57534246 | ||
| 5 | 85314 | 2486 | - | 2528 | = | -42 | * | (51 | / | 146) | = | -14.67123286 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Briarwood Elementary | -9 | ||||||||||||
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 | 85906 | 2451 | - | 2436 | = | 15 | * | (52 | / | 152) | = | 5.13157895 | ||
| 4 | 85907 | 2488 | - | 2485 | = | 3 | * | (47 | / | 152) | = | 0.92763158 | ||
| 5 | 85908 | 2520 | - | 2528 | = | -8 | * | (53 | / | 152) | = | -2.78947368 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Briarwood Elementary | 3 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -31 | -29 | -31 | -9 | 3 | -97.0 | -19.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 25.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -64.4
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 | 61% | 57% | 51% | 60% | 53% |
| 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.
Briarwood Elementary math proficiency
Zero+ meets standard.
51% less $meal
47% less $meal
44% less $meal
54% 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.