West Park Elementary (Data source)
Source data for West Park 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 | 1388080 | 2435 | - | 2436 | = | -1 | * | (60 | / | 180) | = | -0.33333333 | ||
| 4 | 1388081 | 2451 | - | 2485 | = | -34 | * | (57 | / | 180) | = | -10.76666664 | ||
| 5 | 1388084 | 2506 | - | 2528 | = | -22 | * | (63 | / | 180) | = | -7.7 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for West Park Elementary | -19 | ||||||||||||
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 | 43725 | 2415 | - | 2436 | = | -21 | * | (48 | / | 170) | = | -5.92941176 | ||
| 4 | 43727 | 2449 | - | 2485 | = | -36 | * | (63 | / | 170) | = | -13.34117646 | ||
| 5 | 43729 | 2492 | - | 2528 | = | -36 | * | (59 | / | 170) | = | -12.49411763 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for West Park Elementary | -32 | ||||||||||||
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 | 44800 | 2401 | - | 2436 | = | -35 | * | (51 | / | 165) | = | -10.81818182 | ||
| 4 | 44802 | 2423 | - | 2485 | = | -62 | * | (48 | / | 165) | = | -18.03636358 | ||
| 5 | 44803 | 2486 | - | 2528 | = | -42 | * | (66 | / | 165) | = | -16.8 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for West Park Elementary | -46 | ||||||||||||
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 | 44811 | 2409 | - | 2436 | = | -27 | * | (71 | / | 172) | = | -11.14534882 | ||
| 4 | 44812 | 2446 | - | 2485 | = | -39 | * | (54 | / | 172) | = | -12.24418603 | ||
| 5 | 44815 | 2454 | - | 2528 | = | -74 | * | (47 | / | 172) | = | -20.22093016 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for West Park Elementary | -44 | ||||||||||||
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 | 44937 | 2392 | - | 2436 | = | -44 | * | (46 | / | 170) | = | -11.90588234 | ||
| 4 | 44938 | 2445 | - | 2485 | = | -40 | * | (70 | / | 170) | = | -16.4705882 | ||
| 5 | 44939 | 2492 | - | 2528 | = | -36 | * | (54 | / | 170) | = | -11.43529409 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for West Park Elementary | -40 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -19 | -32 | -46 | -44 | -40 | -181.0 | -36.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -3.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -69.2
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 | 28% | 33% | 38% | 41% | 43% |
| 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.
West Park Elementary math proficiency
Zero+ meets standard.
21% less $meal
23% less $meal
27% less $meal
35% less $meal
36% 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.