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 | 2752602 | 2400 | - | 2436 | = | -36 | * | (80 | / | 232) | = | -12.4137931 | ||
| 4 | 2752605 | 2425 | - | 2485 | = | -60 | * | (85 | / | 232) | = | -21.9827586 | ||
| 5 | 2752606 | 2490 | - | 2528 | = | -38 | * | (67 | / | 232) | = | -10.97413791 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ohlone Elementary | -45 | ||||||||||||
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 | 83731 | 2389 | - | 2436 | = | -47 | * | (92 | / | 263) | = | -16.4410646 | ||
| 4 | 83732 | 2435 | - | 2485 | = | -50 | * | (84 | / | 263) | = | -15.9695817 | ||
| 5 | 83735 | 2460 | - | 2528 | = | -68 | * | (87 | / | 263) | = | -22.49429657 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ohlone Elementary | -55 | ||||||||||||
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 | 86047 | 2401 | - | 2436 | = | -35 | * | (81 | / | 262) | = | -10.82061068 | ||
| 4 | 86048 | 2427 | - | 2485 | = | -58 | * | (93 | / | 262) | = | -20.58778626 | ||
| 5 | 86050 | 2478 | - | 2528 | = | -50 | * | (88 | / | 262) | = | -16.7938931 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ohlone Elementary | -48 | ||||||||||||
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 | 86278 | 2408 | - | 2436 | = | -28 | * | (81 | / | 257) | = | -8.82490272 | ||
| 4 | 86281 | 2454 | - | 2485 | = | -31 | * | (79 | / | 257) | = | -9.52918288 | ||
| 5 | 86282 | 2469 | - | 2528 | = | -59 | * | (97 | / | 257) | = | -22.26848245 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ohlone Elementary | -41 | ||||||||||||
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 | 86874 | 2406 | - | 2436 | = | -30 | * | (79 | / | 241) | = | -9.83402487 | ||
| 4 | 86875 | 2439 | - | 2485 | = | -46 | * | (78 | / | 241) | = | -14.88796679 | ||
| 5 | 86876 | 2474 | - | 2528 | = | -54 | * | (84 | / | 241) | = | -18.82157672 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ohlone Elementary | -44 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -45 | -55 | -48 | -41 | -44 | -233.0 | -46.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -31.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -61.6
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 | 94% | 94% | 57% | 87% | 90% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pajaro Valley Unified school district | County of Santa Cruz
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.
89% less $meal
88% less $meal
57% less $meal
84% less $meal
85% 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.