Ohlone Elementary (Data source)
Source data for Ohlone 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 | 2699836 | 2494 | - | 2436 | = | 58 | * | (98 | / | 303) | = | 18.75907589 | ||
| 4 | 2699837 | 2556 | - | 2485 | = | 71 | * | (106 | / | 303) | = | 24.83828379 | ||
| 5 | 2699840 | 2598 | - | 2528 | = | 70 | * | (99 | / | 303) | = | 22.87128711 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ohlone Elementary | 66 | ||||||||||||
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 | 82215 | 2489 | - | 2436 | = | 53 | * | (96 | / | 300) | = | 16.96 | ||
| 4 | 82216 | 2555 | - | 2485 | = | 70 | * | (98 | / | 300) | = | 22.86666662 | ||
| 5 | 82219 | 2592 | - | 2528 | = | 64 | * | (106 | / | 300) | = | 22.61333331 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ohlone Elementary | 62 | ||||||||||||
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 | 84512 | 2500 | - | 2436 | = | 64 | * | (89 | / | 276) | = | 20.63768115 | ||
| 4 | 84515 | 2547 | - | 2485 | = | 62 | * | (91 | / | 276) | = | 20.44202893 | ||
| 5 | 84516 | 2590 | - | 2528 | = | 62 | * | (96 | / | 276) | = | 21.56521733 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ohlone Elementary | 63 | ||||||||||||
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 | 84728 | 2496 | - | 2436 | = | 60 | * | (87 | / | 260) | = | 20.07692304 | ||
| 4 | 84730 | 2565 | - | 2485 | = | 80 | * | (88 | / | 260) | = | 27.07692304 | ||
| 5 | 84732 | 2581 | - | 2528 | = | 53 | * | (85 | / | 260) | = | 17.32692303 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ohlone Elementary | 64 | ||||||||||||
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 | 85322 | 2500 | - | 2436 | = | 64 | * | (89 | / | 261) | = | 21.82375475 | ||
| 4 | 85323 | 2545 | - | 2485 | = | 60 | * | (86 | / | 261) | = | 19.7701149 | ||
| 5 | 85324 | 2603 | - | 2528 | = | 75 | * | (86 | / | 261) | = | 24.71264363 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ohlone Elementary | 66 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 66 | 62 | 63 | 64 | 66 | 321.0 | 64.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 67.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 61.2
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 | 3% | 3% | 2% | 4% | 4% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palo Alto 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.
Ohlone Elementary math proficiency
Zero+ meets standard.
2% less $meal
2% less $meal
1% less $meal
4% less $meal
3% 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.