Bowers Elementary (Data source)
Source data for Bowers 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 | 2719777 | 2409 | - | 2436 | = | -27 | * | (60 | / | 157) | = | -10.31847134 | ||
| 4 | 2719780 | 2445 | - | 2485 | = | -40 | * | (46 | / | 157) | = | -11.7197452 | ||
| 5 | 2719781 | 2483 | - | 2528 | = | -45 | * | (51 | / | 157) | = | -14.61783438 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bowers Elementary | -37 | ||||||||||||
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 | 82759 | 2438 | - | 2436 | = | 2 | * | (50 | / | 153) | = | 0.65359477 | ||
| 4 | 82760 | 2442 | - | 2485 | = | -43 | * | (56 | / | 153) | = | -15.73856205 | ||
| 5 | 82762 | 2469 | - | 2528 | = | -59 | * | (47 | / | 153) | = | -18.12418298 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bowers Elementary | -33 | ||||||||||||
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 | 85068 | 2445 | - | 2436 | = | 9 | * | (44 | / | 152) | = | 2.60526316 | ||
| 4 | 85070 | 2479 | - | 2485 | = | -6 | * | (56 | / | 152) | = | -2.21052631 | ||
| 5 | 85072 | 2467 | - | 2528 | = | -61 | * | (52 | / | 152) | = | -20.86842104 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bowers Elementary | -20 | ||||||||||||
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 | 85286 | 2413 | - | 2436 | = | -23 | * | (51 | / | 146) | = | -8.03424656 | ||
| 4 | 85288 | 2461 | - | 2485 | = | -24 | * | (40 | / | 146) | = | -6.57534245 | ||
| 5 | 85290 | 2515 | - | 2528 | = | -13 | * | (55 | / | 146) | = | -4.89726026 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bowers Elementary | -20 | ||||||||||||
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 | 85882 | 2434 | - | 2436 | = | -2 | * | (44 | / | 130) | = | -0.67692308 | ||
| 4 | 85883 | 2451 | - | 2485 | = | -34 | * | (48 | / | 130) | = | -12.55384615 | ||
| 5 | 85884 | 2495 | - | 2528 | = | -33 | * | (38 | / | 130) | = | -9.64615384 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bowers Elementary | -23 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -37 | -33 | -20 | -20 | -23 | -133.0 | -26.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -5.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -47.6
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 | 62% | 65% | 61% | 72% | 65% |
| 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.
Bowers Elementary math proficiency
Zero+ meets standard.
49% less $meal
52% less $meal
48% less $meal
62% less $meal
54% 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.