Walter Hays Elementary (Data source)
Source data for Walter Hays 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 | 2701639 | 2504 | - | 2436 | = | 68 | * | (90 | / | 322) | = | 19.00621114 | ||
| 4 | 2701642 | 2548 | - | 2485 | = | 63 | * | (113 | / | 322) | = | 22.10869565 | ||
| 5 | 2701643 | 2595 | - | 2528 | = | 67 | * | (119 | / | 322) | = | 24.76086954 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Walter Hays Elementary | 66 | ||||||||||||
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 | 82279 | 2516 | - | 2436 | = | 80 | * | (72 | / | 276) | = | 20.8695652 | ||
| 4 | 82280 | 2559 | - | 2485 | = | 74 | * | (89 | / | 276) | = | 23.86231883 | ||
| 5 | 82282 | 2604 | - | 2528 | = | 76 | * | (115 | / | 276) | = | 31.66666662 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Walter Hays Elementary | 76 | ||||||||||||
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 | 84572 | 2508 | - | 2436 | = | 72 | * | (75 | / | 248) | = | 21.77419349 | ||
| 4 | 84574 | 2541 | - | 2485 | = | 56 | * | (84 | / | 248) | = | 18.96774191 | ||
| 5 | 84576 | 2596 | - | 2528 | = | 68 | * | (89 | / | 248) | = | 24.40322576 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Walter Hays Elementary | 65 | ||||||||||||
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 | 84791 | 2530 | - | 2436 | = | 94 | * | (65 | / | 219) | = | 27.89954329 | ||
| 4 | 84793 | 2535 | - | 2485 | = | 50 | * | (69 | / | 219) | = | 15.75342465 | ||
| 5 | 84795 | 2601 | - | 2528 | = | 73 | * | (85 | / | 219) | = | 28.33333327 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Walter Hays Elementary | 72 | ||||||||||||
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 | 85384 | 2509 | - | 2436 | = | 73 | * | (67 | / | 219) | = | 22.33333333 | ||
| 4 | 85385 | 2545 | - | 2485 | = | 60 | * | (69 | / | 219) | = | 18.90410958 | ||
| 5 | 85386 | 2582 | - | 2528 | = | 54 | * | (83 | / | 219) | = | 20.46575338 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Walter Hays Elementary | 62 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 66 | 76 | 65 | 72 | 62 | 341.0 | 68.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 83.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 53.2
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 | 9% | 8% | 10% | 10% | 9% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palo Alto 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.
Walter Hays Elementary math proficiency
Zero+ meets standard.
7% less $meal
7% less $meal
8% less $meal
9% less $meal
8% 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.