Tierra Bonita Elementary (Data source)
Source data for Tierra Bonita 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 | 2209375 | 2468 | - | 2436 | = | 32 | * | (80 | / | 241) | = | 10.62240662 | ||
| 4 | 2209376 | 2488 | - | 2485 | = | 3 | * | (86 | / | 241) | = | 1.07053942 | ||
| 5 | 2209379 | 2523 | - | 2528 | = | -5 | * | (75 | / | 241) | = | -1.5560166 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Tierra Bonita Elementary | 10 | ||||||||||||
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 | 67809 | 2462 | - | 2436 | = | 26 | * | (63 | / | 229) | = | 7.15283842 | ||
| 4 | 67811 | 2510 | - | 2485 | = | 25 | * | (83 | / | 229) | = | 9.06113535 | ||
| 5 | 67814 | 2559 | - | 2528 | = | 31 | * | (83 | / | 229) | = | 11.23580783 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Tierra Bonita Elementary | 27 | ||||||||||||
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 | 69611 | 2470 | - | 2436 | = | 34 | * | (78 | / | 226) | = | 11.73451326 | ||
| 4 | 69612 | 2483 | - | 2485 | = | -2 | * | (65 | / | 226) | = | -0.57522124 | ||
| 5 | 69615 | 2556 | - | 2528 | = | 28 | * | (83 | / | 226) | = | 10.28318584 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Tierra Bonita Elementary | 21 | ||||||||||||
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 | 69774 | 2446 | - | 2436 | = | 10 | * | (81 | / | 235) | = | 3.44680851 | ||
| 4 | 69775 | 2511 | - | 2485 | = | 26 | * | (85 | / | 235) | = | 9.4042553 | ||
| 5 | 69778 | 2533 | - | 2528 | = | 5 | * | (69 | / | 235) | = | 1.46808511 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Tierra Bonita Elementary | 14 | ||||||||||||
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 | 70295 | 2465 | - | 2436 | = | 29 | * | (74 | / | 240) | = | 8.94166666 | ||
| 4 | 70296 | 2509 | - | 2485 | = | 24 | * | (83 | / | 240) | = | 8.29999999 | ||
| 5 | 70297 | 2562 | - | 2528 | = | 34 | * | (83 | / | 240) | = | 11.75833332 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Tierra Bonita Elementary | 29 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 10 | 27 | 21 | 14 | 29 | 101.0 | 20.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 44.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -3.8
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 | 14% | 13% | 13% | 16% | 17% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Poway Unified school district | County of San Diego
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.
Tierra Bonita Elementary math proficiency
Zero+ meets standard.
12% less $meal
10% less $meal
10% less $meal
13% less $meal
13% 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.