Rachel Carson Elementary (Data source)
Source data for Rachel Carson 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 | 2715867 | 2429 | - | 2436 | = | -7 | * | (56 | / | 196) | = | -2.0 | ||
| 4 | 2715868 | 2483 | - | 2485 | = | -2 | * | (76 | / | 196) | = | -0.7755102 | ||
| 5 | 2715871 | 2503 | - | 2528 | = | -25 | * | (64 | / | 196) | = | -8.1632653 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rachel Carson Elementary | -11 | ||||||||||||
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 | 82675 | 2464 | - | 2436 | = | 28 | * | (49 | / | 173) | = | 7.93063583 | ||
| 4 | 82676 | 2460 | - | 2485 | = | -25 | * | (52 | / | 173) | = | -7.51445085 | ||
| 5 | 82679 | 2511 | - | 2528 | = | -17 | * | (72 | / | 173) | = | -7.07514451 | ||
| 6 | 82680 | 0 | - | 2552 | = | * | (0 | / | 173) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rachel Carson Elementary | -7 | ||||||||||||
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 | 84966 | 2441 | - | 2436 | = | 5 | * | (40 | / | 132) | = | 1.51515152 | ||
| 4 | 84968 | 2475 | - | 2485 | = | -10 | * | (49 | / | 132) | = | -3.71212121 | ||
| 5 | 84971 | 2501 | - | 2528 | = | -27 | * | (43 | / | 132) | = | -8.79545453 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rachel Carson Elementary | -11 | ||||||||||||
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 | 85183 | 2427 | - | 2436 | = | -9 | * | (46 | / | 135) | = | -3.06666666 | ||
| 4 | 85185 | 2434 | - | 2485 | = | -51 | * | (38 | / | 135) | = | -14.35555553 | ||
| 5 | 85187 | 2518 | - | 2528 | = | -10 | * | (51 | / | 135) | = | -3.77777777 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rachel Carson Elementary | -21 | ||||||||||||
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 | 85776 | 2433 | - | 2436 | = | -3 | * | (43 | / | 132) | = | -0.97727273 | ||
| 4 | 85777 | 2419 | - | 2485 | = | -66 | * | (46 | / | 132) | = | -22.99999997 | ||
| 5 | 85778 | 2453 | - | 2528 | = | -75 | * | (43 | / | 132) | = | -24.43181813 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rachel Carson Elementary | -48 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -11 | -7 | -11 | -21 | -48 | -98.0 | -19.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 28.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -67.6
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 | 35% | 37% | 41% | 42% | 38% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Jose 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.
Rachel Carson Elementary math proficiency
Zero+ meets standard.
29% less $meal
29% less $meal
30% less $meal
36% less $meal
33% 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.