Cesar Chavez Elementary (Data source)
Source data for Cesar Chavez 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 | 2618970 | 2393 | - | 2436 | = | -43 | * | (90 | / | 239) | = | -16.19246859 | ||
| 4 | 2618973 | 2445 | - | 2485 | = | -40 | * | (92 | / | 239) | = | -15.39748952 | ||
| 5 | 2618974 | 2463 | - | 2528 | = | -65 | * | (57 | / | 239) | = | -15.502092 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Cesar Chavez Elementary | -47 | ||||||||||||
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 | 79918 | 2392 | - | 2436 | = | -44 | * | (71 | / | 239) | = | -13.07112968 | ||
| 4 | 79919 | 2424 | - | 2485 | = | -61 | * | (89 | / | 239) | = | -22.71548116 | ||
| 5 | 79922 | 2465 | - | 2528 | = | -63 | * | (79 | / | 239) | = | -20.82426778 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Cesar Chavez Elementary | -57 | ||||||||||||
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 | 82102 | 2417 | - | 2436 | = | -19 | * | (64 | / | 203) | = | -5.99014777 | ||
| 4 | 82104 | 2441 | - | 2485 | = | -44 | * | (65 | / | 203) | = | -14.08866994 | ||
| 5 | 82106 | 2458 | - | 2528 | = | -70 | * | (74 | / | 203) | = | -25.51724133 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Cesar Chavez Elementary | -46 | ||||||||||||
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 | 82302 | 2413 | - | 2436 | = | -23 | * | (57 | / | 182) | = | -7.2032967 | ||
| 4 | 82303 | 2448 | - | 2485 | = | -37 | * | (65 | / | 182) | = | -13.21428571 | ||
| 5 | 82306 | 2462 | - | 2528 | = | -66 | * | (60 | / | 182) | = | -21.75824171 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Cesar Chavez Elementary | -42 | ||||||||||||
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 | 82916 | 2418 | - | 2436 | = | -18 | * | (52 | / | 178) | = | -5.25842696 | ||
| 4 | 82917 | 2438 | - | 2485 | = | -47 | * | (63 | / | 178) | = | -16.63483145 | ||
| 5 | 82918 | 2454 | - | 2528 | = | -74 | * | (63 | / | 178) | = | -26.19101122 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Cesar Chavez Elementary | -48 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -47 | -57 | -46 | -42 | -48 | -240.0 | -48.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -33.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -63.0
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 | 94% | 93% | 92% | 91% | 91% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alum Rock 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.
Cesar Chavez Elementary math proficiency
Zero+ meets standard.
81% less $meal
81% less $meal
80% less $meal
80% less $meal
79% 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.