Williams Ranch Elementary (Data source)
Source data for Williams Ranch 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 | 1404999 | 2425 | - | 2436 | = | -11 | * | (37 | / | 37) | = | -11.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Williams Ranch Elementary | -11 | ||||||||||||
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 | 44328 | 2423 | - | 2436 | = | -13 | * | (45 | / | 45) | = | -13.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Williams Ranch Elementary | -13 | ||||||||||||
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 | 45415 | 2464 | - | 2436 | = | 28 | * | (40 | / | 40) | = | 28.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Williams Ranch Elementary | 28 | ||||||||||||
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 | 45429 | 2454 | - | 2436 | = | 18 | * | (41 | / | 114) | = | 6.4736842 | ||
| 4 | 45430 | 2492 | - | 2485 | = | 7 | * | (36 | / | 114) | = | 2.21052631 | ||
| 5 | 45433 | 2503 | - | 2528 | = | -25 | * | (37 | / | 114) | = | -8.11403508 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Williams Ranch Elementary | 1 | ||||||||||||
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 | 45567 | 2430 | - | 2436 | = | -6 | * | (29 | / | 102) | = | -1.70588235 | ||
| 4 | 45568 | 2466 | - | 2485 | = | -19 | * | (39 | / | 102) | = | -7.26470588 | ||
| 5 | 45569 | 2520 | - | 2528 | = | -8 | * | (34 | / | 102) | = | -2.66666666 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Williams Ranch Elementary | -12 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -11 | -13 | 28 | 1 | -12 | -7.0 | -1.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 49.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -52.4
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 | 42% | 45% | 35% | 46% | 47% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Penn Valley Union Elementary school district | County of Nevada
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.
Williams Ranch Elementary math proficiency
Zero+ meets standard.
33% less $meal
32% less $meal
23% less $meal
36% less $meal
44% 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 Penn Valley Union Elementary (2)
| Ready Springs Elementary | Williams Ranch Elementary |