Tamarisk Elementary (Data source)
Source data for Tamarisk 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 | 1058635 | 2343 | - | 2436 | = | -93 | * | (107 | / | 377) | = | -26.3952254 | ||
| 4 | 1058638 | 2380 | - | 2485 | = | -105 | * | (110 | / | 377) | = | -30.63660474 | ||
| 5 | 1058639 | 2413 | - | 2528 | = | -115 | * | (83 | / | 377) | = | -25.31830237 | ||
| 6 | 1058642 | 2418 | - | 2552 | = | -134 | * | (77 | / | 377) | = | -27.36870015 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Tamarisk Elementary | -110 | ||||||||||||
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 | 33214 | 2341 | - | 2436 | = | -95 | * | (126 | / | 436) | = | -27.45412838 | ||
| 4 | 33216 | 2387 | - | 2485 | = | -98 | * | (109 | / | 436) | = | -24.5 | ||
| 5 | 33218 | 2436 | - | 2528 | = | -92 | * | (113 | / | 436) | = | -23.84403661 | ||
| 6 | 33219 | 2408 | - | 2552 | = | -144 | * | (88 | / | 436) | = | -29.06422013 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Tamarisk Elementary | -105 | ||||||||||||
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 | 33794 | 2323 | - | 2436 | = | -113 | * | (101 | / | 432) | = | -26.41898145 | ||
| 4 | 33797 | 2373 | - | 2485 | = | -112 | * | (130 | / | 432) | = | -33.7037036 | ||
| 5 | 33798 | 2416 | - | 2528 | = | -112 | * | (117 | / | 432) | = | -30.3333333 | ||
| 6 | 33801 | 2454 | - | 2552 | = | -98 | * | (84 | / | 432) | = | -19.05555551 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Tamarisk Elementary | -110 | ||||||||||||
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 | 33825 | 2365 | - | 2436 | = | -71 | * | (127 | / | 361) | = | -24.97783933 | ||
| 4 | 33826 | 2381 | - | 2485 | = | -104 | * | (108 | / | 361) | = | -31.1135734 | ||
| 5 | 33828 | 2431 | - | 2528 | = | -97 | * | (126 | / | 361) | = | -33.85595559 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Tamarisk Elementary | -90 | ||||||||||||
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 | 34002 | 2315 | - | 2436 | = | -121 | * | (110 | / | 349) | = | -38.13753577 | ||
| 4 | 34003 | 2376 | - | 2485 | = | -109 | * | (132 | / | 349) | = | -41.22636096 | ||
| 5 | 34004 | 2401 | - | 2528 | = | -127 | * | (107 | / | 349) | = | -38.93696264 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Tamarisk Elementary | -118 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -110 | -105 | -110 | -90 | -118 | -533.0 | -106.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -76.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -136.6
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 | 95% | 99% | 98% | 98% | 97% |
| 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.
Tamarisk Elementary math proficiency
Zero+ meets standard.
90% less $meal
94% less $meal
92% less $meal
93% less $meal
93% 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.