Harry Wirtz Elementary (Data source)
Source data for Harry Wirtz 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 | 1075978 | 2413 | - | 2436 | = | -23 | * | (110 | / | 330) | = | -7.66666666 | ||
| 4 | 1075981 | 2438 | - | 2485 | = | -47 | * | (105 | / | 330) | = | -14.95454545 | ||
| 5 | 1075982 | 2434 | - | 2528 | = | -94 | * | (115 | / | 330) | = | -32.75757571 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Harry Wirtz Elementary | -55 | ||||||||||||
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 | 33737 | 2431 | - | 2436 | = | -5 | * | (96 | / | 321) | = | -1.4953271 | ||
| 4 | 33739 | 2437 | - | 2485 | = | -48 | * | (118 | / | 321) | = | -17.64485981 | ||
| 5 | 33742 | 2461 | - | 2528 | = | -67 | * | (107 | / | 321) | = | -22.33333331 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Harry Wirtz Elementary | -41 | ||||||||||||
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 | 34328 | 2415 | - | 2436 | = | -21 | * | (103 | / | 324) | = | -6.67592591 | ||
| 4 | 34329 | 2442 | - | 2485 | = | -43 | * | (102 | / | 324) | = | -13.537037 | ||
| 5 | 34332 | 2454 | - | 2528 | = | -74 | * | (119 | / | 324) | = | -27.1790123 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Harry Wirtz Elementary | -47 | ||||||||||||
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 | 34333 | 2449 | - | 2436 | = | 13 | * | (89 | / | 292) | = | 3.96232876 | ||
| 4 | 34334 | 2432 | - | 2485 | = | -53 | * | (100 | / | 292) | = | -18.15068491 | ||
| 5 | 34337 | 2453 | - | 2528 | = | -75 | * | (103 | / | 292) | = | -26.45547945 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Harry Wirtz Elementary | -41 | ||||||||||||
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 | 34498 | 2429 | - | 2436 | = | -7 | * | (101 | / | 283) | = | -2.49823321 | ||
| 4 | 34499 | 2459 | - | 2485 | = | -26 | * | (88 | / | 283) | = | -8.08480564 | ||
| 5 | 34500 | 2428 | - | 2528 | = | -100 | * | (94 | / | 283) | = | -33.2155477 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Harry Wirtz Elementary | -44 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -55 | -41 | -47 | -41 | -44 | -228.0 | -45.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -30.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -60.6
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% | 96% | 96% | 96% | 97% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Paramount Unified 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.
Harry Wirtz Elementary math proficiency
Zero+ meets standard.
87% less $meal
85% less $meal
86% less $meal
88% less $meal
87% 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.
Elementary School (Public) schools in Paramount Unified (12)
| Abraham Lincoln | Captain Raymond Collins | Harry Wirtz Elementary |
| Hollydale | Howard Tanner | Jefferson Elementary |
| Leona Jackson | Los Cerritos | Major Lynn Mokler |
| Mark Keppel | Theodore Roosevelt | Wesley Gaines |