Lexington Elementary (Data source)
Source data for Lexington 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 | 2671639 | 2442 | - | 2436 | = | 6 | * | (21 | / | 69) | = | 1.82608696 | ||
| 4 | 2671642 | 2490 | - | 2485 | = | 5 | * | (21 | / | 69) | = | 1.52173913 | ||
| 5 | 2671643 | 2554 | - | 2528 | = | 26 | * | (27 | / | 69) | = | 10.17391302 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lexington Elementary | 14 | ||||||||||||
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 | 81419 | 2482 | - | 2436 | = | 46 | * | (31 | / | 73) | = | 19.53424656 | ||
| 4 | 81421 | 2501 | - | 2485 | = | 16 | * | (21 | / | 73) | = | 4.60273971 | ||
| 5 | 81422 | 2539 | - | 2528 | = | 11 | * | (21 | / | 73) | = | 3.16438355 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lexington 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 | 83687 | 2450 | - | 2436 | = | 14 | * | (32 | / | 83) | = | 5.39759035 | ||
| 4 | 83689 | 2514 | - | 2485 | = | 29 | * | (28 | / | 83) | = | 9.78313251 | ||
| 5 | 83691 | 2533 | - | 2528 | = | 5 | * | (23 | / | 83) | = | 1.38554217 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lexington Elementary | 17 | ||||||||||||
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 | 83907 | 2457 | - | 2436 | = | 21 | * | (23 | / | 80) | = | 6.0375 | ||
| 4 | 83909 | 2509 | - | 2485 | = | 24 | * | (29 | / | 80) | = | 8.7 | ||
| 5 | 83911 | 2536 | - | 2528 | = | 8 | * | (28 | / | 80) | = | 2.8 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lexington Elementary | 18 | ||||||||||||
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 | 84520 | 2463 | - | 2436 | = | 27 | * | (27 | / | 79) | = | 9.22784808 | ||
| 4 | 84521 | 2508 | - | 2485 | = | 23 | * | (25 | / | 79) | = | 7.27848101 | ||
| 5 | 84522 | 2513 | - | 2528 | = | -15 | * | (27 | / | 79) | = | -5.12658227 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lexington Elementary | 11 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 14 | 27 | 17 | 18 | 11 | 87.0 | 17.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 35.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -0.6
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 | 6% | 4% | 3% | 7% | 5% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Los Gatos 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.
Lexington Elementary math proficiency
Zero+ meets standard.
6% less $meal
2% less $meal
3% less $meal
7% less $meal
5% 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 Los Gatos Union Elementary (4)
| Blossom Hill Elementary | Daves Avenue Elementary | Lexington Elementary |
| Louise Van Meter Elementary |