H. A. Snow Elementary (Data source)
Source data for H. A. Snow 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 | 63668 | 2414 | - | 2436 | = | -22 | * | (53 | / | 237) | = | -4.9198312 | ||
| 4 | 63670 | 2441 | - | 2485 | = | -44 | * | (58 | / | 237) | = | -10.76793247 | ||
| 5 | 63672 | 2497 | - | 2528 | = | -31 | * | (47 | / | 237) | = | -6.14767932 | ||
| 6 | 63674 | 2517 | - | 2552 | = | -35 | * | (79 | / | 237) | = | -11.66666666 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for H. A. Snow Elementary | -34 | ||||||||||||
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 | 1700 | 2424 | - | 2436 | = | -12 | * | (69 | / | 218) | = | -3.79816513 | ||
| 4 | 1701 | 2442 | - | 2485 | = | -43 | * | (53 | / | 218) | = | -10.45412844 | ||
| 5 | 1704 | 2501 | - | 2528 | = | -27 | * | (50 | / | 218) | = | -6.19266055 | ||
| 6 | 1706 | 2542 | - | 2552 | = | -10 | * | (46 | / | 218) | = | -2.11009174 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for H. A. Snow Elementary | -23 | ||||||||||||
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 | 1755 | 2418 | - | 2436 | = | -18 | * | (43 | / | 210) | = | -3.68571427 | ||
| 4 | 1758 | 2452 | - | 2485 | = | -33 | * | (68 | / | 210) | = | -10.68571426 | ||
| 5 | 1760 | 2510 | - | 2528 | = | -18 | * | (47 | / | 210) | = | -4.02857141 | ||
| 6 | 1761 | 2519 | - | 2552 | = | -33 | * | (52 | / | 210) | = | -8.17142855 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for H. A. Snow Elementary | -27 | ||||||||||||
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 | 1769 | 2451 | - | 2436 | = | 15 | * | (48 | / | 203) | = | 3.54679802 | ||
| 4 | 1771 | 2435 | - | 2485 | = | -50 | * | (45 | / | 203) | = | -11.0837438 | ||
| 5 | 1774 | 2481 | - | 2528 | = | -47 | * | (65 | / | 203) | = | -15.04926107 | ||
| 6 | 1775 | 2535 | - | 2552 | = | -17 | * | (45 | / | 203) | = | -3.76847289 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for H. A. Snow Elementary | -26 | ||||||||||||
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 | 1794 | 2420 | - | 2436 | = | -16 | * | (49 | / | 198) | = | -3.95959595 | ||
| 4 | 1795 | 2460 | - | 2485 | = | -25 | * | (48 | / | 198) | = | -6.06060605 | ||
| 5 | 1796 | 2467 | - | 2528 | = | -61 | * | (41 | / | 198) | = | -12.63131313 | ||
| 6 | 1797 | 2499 | - | 2552 | = | -53 | * | (60 | / | 198) | = | -16.06060606 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for H. A. Snow Elementary | -39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -34 | -23 | -27 | -26 | -39 | -149.0 | -29.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -11.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -47.8
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 | 54% | 50% | 50% | 53% | 51% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Newark Unified school district | County of Alameda
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.
H. A. Snow Elementary math proficiency
Zero+ meets standard.
49% less $meal
44% less $meal
37% less $meal
45% less $meal
42% 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 Newark Unified (8)
| August Schilling Elementary | Birch Grove Intermediate | Birch Grove Primary |
| E. L. Musick Elementary | H. A. Snow Elementary | James A. Graham Elementary |
| John F. Kennedy Elementary | Lincoln Elementary |