Yucca Elementary (Data source)
Source data for Yucca 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 | 1060036 | 2363 | - | 2436 | = | -73 | * | (111 | / | 389) | = | -20.83033414 | ||
| 4 | 1060039 | 2385 | - | 2485 | = | -100 | * | (98 | / | 389) | = | -25.192802 | ||
| 5 | 1060040 | 2430 | - | 2528 | = | -98 | * | (102 | / | 389) | = | -25.69665801 | ||
| 6 | 1060043 | 2457 | - | 2552 | = | -95 | * | (78 | / | 389) | = | -19.04884311 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Yucca Elementary | -91 | ||||||||||||
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 | 33267 | 2382 | - | 2436 | = | -54 | * | (91 | / | 404) | = | -12.1633663 | ||
| 4 | 33269 | 2401 | - | 2485 | = | -84 | * | (113 | / | 404) | = | -23.49504948 | ||
| 5 | 33271 | 2410 | - | 2528 | = | -118 | * | (97 | / | 404) | = | -28.33168306 | ||
| 6 | 33274 | 2447 | - | 2552 | = | -105 | * | (103 | / | 404) | = | -26.76980198 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Yucca Elementary | -91 | ||||||||||||
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 | 33853 | 2366 | - | 2436 | = | -70 | * | (96 | / | 369) | = | -18.21138207 | ||
| 4 | 33855 | 2422 | - | 2485 | = | -63 | * | (82 | / | 369) | = | -13.99999999 | ||
| 5 | 33857 | 2420 | - | 2528 | = | -108 | * | (102 | / | 369) | = | -29.85365851 | ||
| 6 | 33859 | 2418 | - | 2552 | = | -134 | * | (89 | / | 369) | = | -32.31978307 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Yucca Elementary | -94 | ||||||||||||
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 | 33878 | 2382 | - | 2436 | = | -54 | * | (93 | / | 262) | = | -19.16793893 | ||
| 4 | 33881 | 2405 | - | 2485 | = | -80 | * | (88 | / | 262) | = | -26.87022896 | ||
| 5 | 33882 | 2431 | - | 2528 | = | -97 | * | (81 | / | 262) | = | -29.98854959 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Yucca Elementary | -76 | ||||||||||||
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 | 34060 | 2383 | - | 2436 | = | -53 | * | (108 | / | 293) | = | -19.53583615 | ||
| 4 | 34061 | 2420 | - | 2485 | = | -65 | * | (91 | / | 293) | = | -20.18771326 | ||
| 5 | 34062 | 2438 | - | 2528 | = | -90 | * | (94 | / | 293) | = | -28.87372008 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Yucca Elementary | -69 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -91 | -91 | -94 | -76 | -69 | -421.0 | -84.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -51.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -117.2
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 | 95% | 97% | 97% | 98% | 95% |
| 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.
Yucca Elementary math proficiency
Zero+ meets standard.
91% less $meal
94% less $meal
93% less $meal
94% less $meal
91% 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.