Loma Prieta Elementary (Data source)
Source data for Loma Prieta 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 | 2666982 | 2456 | - | 2436 | = | 20 | * | (54 | / | 167) | = | 6.46706586 | ||
| 4 | 2666983 | 2516 | - | 2485 | = | 31 | * | (55 | / | 167) | = | 10.20958083 | ||
| 5 | 2666986 | 2515 | - | 2528 | = | -13 | * | (58 | / | 167) | = | -4.51497006 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Loma Prieta Elementary | 12 | ||||||||||||
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 | 81277 | 2466 | - | 2436 | = | 30 | * | (53 | / | 169) | = | 9.40828401 | ||
| 4 | 81279 | 2513 | - | 2485 | = | 28 | * | (57 | / | 169) | = | 9.44378697 | ||
| 5 | 81281 | 2584 | - | 2528 | = | 56 | * | (59 | / | 169) | = | 19.55029586 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Loma Prieta Elementary | 38 | ||||||||||||
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 | 83525 | 2475 | - | 2436 | = | 39 | * | (47 | / | 163) | = | 11.24539876 | ||
| 4 | 83527 | 2512 | - | 2485 | = | 27 | * | (57 | / | 163) | = | 9.44171778 | ||
| 5 | 83529 | 2563 | - | 2528 | = | 35 | * | (59 | / | 163) | = | 12.66871165 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Loma Prieta Elementary | 33 | ||||||||||||
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 | 83751 | 2484 | - | 2436 | = | 48 | * | (40 | / | 136) | = | 14.11764706 | ||
| 4 | 83753 | 2538 | - | 2485 | = | 53 | * | (39 | / | 136) | = | 15.19852937 | ||
| 5 | 83755 | 2548 | - | 2528 | = | 20 | * | (57 | / | 136) | = | 8.38235294 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Loma Prieta Elementary | 38 | ||||||||||||
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 | 84362 | 2480 | - | 2436 | = | 44 | * | (45 | / | 131) | = | 15.1145038 | ||
| 4 | 84363 | 2529 | - | 2485 | = | 44 | * | (41 | / | 131) | = | 13.77099236 | ||
| 5 | 84364 | 2588 | - | 2528 | = | 60 | * | (45 | / | 131) | = | 20.610687 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Loma Prieta Elementary | 49 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 12 | 38 | 33 | 38 | 49 | 170.0 | 34.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 73.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -5.0
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 | 5% | 3% | 4% | 5% | 5% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Loma Prieta Joint Union Elementary 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.
Loma Prieta Elementary math proficiency
Zero+ meets standard.
4% less $meal
2% less $meal
3% less $meal
5% less $meal
4% 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.
Elementary School (Public) schools in Loma Prieta Joint Union Elementary (1)
| Loma Prieta Elementary |