Donaldson Way Elementary (Data source)
Source data for Donaldson Way 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 | 1384913 | 2452 | - | 2436 | = | 16 | * | (111 | / | 331) | = | 5.36555891 | ||
| 4 | 1384914 | 2485 | - | 2485 | = | 0 | * | (105 | / | 331) | = | 0.0 | ||
| 5 | 1384917 | 2494 | - | 2528 | = | -34 | * | (115 | / | 331) | = | -11.81268882 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Donaldson Way Elementary | -6 | ||||||||||||
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 | 43627 | 2428 | - | 2436 | = | -8 | * | (103 | / | 318) | = | -2.59119497 | ||
| 4 | 43628 | 2487 | - | 2485 | = | 2 | * | (110 | / | 318) | = | 0.6918239 | ||
| 5 | 43631 | 2522 | - | 2528 | = | -6 | * | (105 | / | 318) | = | -1.98113207 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Donaldson Way Elementary | -4 | ||||||||||||
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 | 44701 | 2450 | - | 2436 | = | 14 | * | (104 | / | 321) | = | 4.53582553 | ||
| 4 | 44704 | 2483 | - | 2485 | = | -2 | * | (102 | / | 321) | = | -0.63551402 | ||
| 5 | 44706 | 2518 | - | 2528 | = | -10 | * | (115 | / | 321) | = | -3.58255451 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Donaldson Way Elementary | 0 | ||||||||||||
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 | 44714 | 2422 | - | 2436 | = | -14 | * | (104 | / | 323) | = | -4.50773994 | ||
| 4 | 44717 | 2485 | - | 2485 | = | 0 | * | (111 | / | 323) | = | 0.0 | ||
| 5 | 44718 | 2518 | - | 2528 | = | -10 | * | (108 | / | 323) | = | -3.34365325 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Donaldson Way Elementary | -8 | ||||||||||||
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 | 44857 | 2423 | - | 2436 | = | -13 | * | (93 | / | 310) | = | -3.9 | ||
| 4 | 44858 | 2470 | - | 2485 | = | -15 | * | (105 | / | 310) | = | -5.08064516 | ||
| 5 | 44859 | 2536 | - | 2528 | = | 8 | * | (112 | / | 310) | = | 2.89032258 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Donaldson Way Elementary | -6 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -6 | -4 | 0 | -8 | -6 | -24.0 | -4.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -3.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -9.0
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 | 34% | 38% | 37% | 39% | 40% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Napa Valley Unified school district | County of Napa
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.
Donaldson Way Elementary math proficiency
Zero+ meets standard.
25% less $meal
28% less $meal
28% less $meal
31% 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.