Quail Valley Elementary (Data source)
Source data for Quail Valley 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 | 1064414 | 2371 | - | 2436 | = | -65 | * | (126 | / | 450) | = | -18.2 | ||
| 4 | 1064417 | 2397 | - | 2485 | = | -88 | * | (136 | / | 450) | = | -26.59555554 | ||
| 5 | 1064418 | 2447 | - | 2528 | = | -81 | * | (86 | / | 450) | = | -15.47999999 | ||
| 6 | 1064421 | 2461 | - | 2552 | = | -91 | * | (102 | / | 450) | = | -20.62666661 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Quail Valley Elementary | -81 | ||||||||||||
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 | 33390 | 2383 | - | 2436 | = | -53 | * | (104 | / | 430) | = | -12.81860465 | ||
| 4 | 33391 | 2409 | - | 2485 | = | -76 | * | (117 | / | 430) | = | -20.67906975 | ||
| 5 | 33394 | 2430 | - | 2528 | = | -98 | * | (118 | / | 430) | = | -26.89302319 | ||
| 6 | 33396 | 2455 | - | 2552 | = | -97 | * | (91 | / | 430) | = | -20.52790688 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Quail Valley Elementary | -81 | ||||||||||||
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 | 33979 | 2370 | - | 2436 | = | -66 | * | (119 | / | 441) | = | -17.80952375 | ||
| 4 | 33981 | 2405 | - | 2485 | = | -80 | * | (99 | / | 441) | = | -17.9591836 | ||
| 5 | 33982 | 2449 | - | 2528 | = | -79 | * | (111 | / | 441) | = | -19.88435372 | ||
| 6 | 33985 | 2439 | - | 2552 | = | -113 | * | (112 | / | 441) | = | -28.69841259 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Quail Valley Elementary | -84 | ||||||||||||
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 | 33986 | 2382 | - | 2436 | = | -54 | * | (130 | / | 341) | = | -20.58651023 | ||
| 4 | 33989 | 2417 | - | 2485 | = | -68 | * | (112 | / | 341) | = | -22.3343108 | ||
| 5 | 33990 | 2458 | - | 2528 | = | -70 | * | (99 | / | 341) | = | -20.3225806 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Quail Valley Elementary | -63 | ||||||||||||
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 | 34168 | 2382 | - | 2436 | = | -54 | * | (105 | / | 337) | = | -16.8249258 | ||
| 4 | 34169 | 2414 | - | 2485 | = | -71 | * | (121 | / | 337) | = | -25.4925816 | ||
| 5 | 34170 | 2447 | - | 2528 | = | -81 | * | (111 | / | 337) | = | -26.67952517 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Quail Valley Elementary | -69 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -81 | -81 | -84 | -63 | -69 | -378.0 | -75.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -48.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -102.6
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 | 86% | 87% | 82% | 87% | 87% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palmdale Elementary school district | County of Los Angeles
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.
Quail Valley Elementary math proficiency
Zero+ meets standard.
70% less $meal
72% less $meal
70% less $meal
78% less $meal
75% 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.