Ernesto Galarza Elementary (Data source)
Source data for Ernesto Galarza 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 | 2716498 | 2388 | - | 2436 | = | -48 | * | (77 | / | 252) | = | -14.66666664 | ||
| 4 | 2716500 | 2427 | - | 2485 | = | -58 | * | (82 | / | 252) | = | -18.87301585 | ||
| 5 | 2716503 | 2430 | - | 2528 | = | -98 | * | (93 | / | 252) | = | -36.16666666 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ernesto Galarza Elementary | -70 | ||||||||||||
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 | 82692 | 2356 | - | 2436 | = | -80 | * | (68 | / | 215) | = | -25.30232552 | ||
| 4 | 82694 | 2424 | - | 2485 | = | -61 | * | (75 | / | 215) | = | -21.27906975 | ||
| 5 | 82697 | 2432 | - | 2528 | = | -96 | * | (72 | / | 215) | = | -32.14883712 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ernesto Galarza Elementary | -79 | ||||||||||||
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 | 84983 | 2377 | - | 2436 | = | -59 | * | (78 | / | 220) | = | -20.91818179 | ||
| 4 | 84984 | 2403 | - | 2485 | = | -82 | * | (72 | / | 220) | = | -26.83636361 | ||
| 5 | 84986 | 2427 | - | 2528 | = | -101 | * | (70 | / | 220) | = | -32.13636362 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ernesto Galarza Elementary | -80 | ||||||||||||
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 | 85199 | 2379 | - | 2436 | = | -57 | * | (59 | / | 200) | = | -16.815 | ||
| 4 | 85200 | 2423 | - | 2485 | = | -62 | * | (79 | / | 200) | = | -24.49 | ||
| 5 | 85203 | 2393 | - | 2528 | = | -135 | * | (62 | / | 200) | = | -41.85 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ernesto Galarza Elementary | -83 | ||||||||||||
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 | 85792 | 2369 | - | 2436 | = | -67 | * | (59 | / | 187) | = | -21.13903741 | ||
| 4 | 85793 | 2417 | - | 2485 | = | -68 | * | (51 | / | 187) | = | -18.5454545 | ||
| 5 | 85794 | 2444 | - | 2528 | = | -84 | * | (77 | / | 187) | = | -34.58823522 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ernesto Galarza Elementary | -74 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -70 | -79 | -80 | -83 | -74 | -386.0 | -77.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -62.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -92.2
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 | 77% | 74% | 79% | 76% | 69% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Jose Unified 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.
Ernesto Galarza Elementary math proficiency
Zero+ meets standard.
67% less $meal
65% less $meal
66% less $meal
69% less $meal
62% 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.