Quartz Hill Elementary (Data source)
Source data for Quartz Hill 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 | 1145637 | 2412 | - | 2436 | = | -24 | * | (120 | / | 471) | = | -6.11464968 | ||
| 4 | 1145640 | 2468 | - | 2485 | = | -17 | * | (114 | / | 471) | = | -4.11464967 | ||
| 5 | 1145641 | 2454 | - | 2528 | = | -74 | * | (110 | / | 471) | = | -17.28237788 | ||
| 6 | 1145644 | 2515 | - | 2552 | = | -37 | * | (127 | / | 471) | = | -9.97664541 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Quartz Hill Elementary | -37 | ||||||||||||
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 | 35653 | 2395 | - | 2436 | = | -41 | * | (118 | / | 459) | = | -10.54030501 | ||
| 4 | 35656 | 2452 | - | 2485 | = | -33 | * | (130 | / | 459) | = | -9.3464052 | ||
| 5 | 35658 | 2474 | - | 2528 | = | -54 | * | (120 | / | 459) | = | -14.11764703 | ||
| 6 | 35659 | 2491 | - | 2552 | = | -61 | * | (91 | / | 459) | = | -12.09368188 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Quartz Hill Elementary | -46 | ||||||||||||
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 | 36356 | 2386 | - | 2436 | = | -50 | * | (115 | / | 486) | = | -11.8312757 | ||
| 4 | 36357 | 2458 | - | 2485 | = | -27 | * | (120 | / | 486) | = | -6.66666666 | ||
| 5 | 36359 | 2450 | - | 2528 | = | -78 | * | (143 | / | 486) | = | -22.95061727 | ||
| 6 | 36362 | 2512 | - | 2552 | = | -40 | * | (108 | / | 486) | = | -8.88888888 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Quartz Hill Elementary | -50 | ||||||||||||
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 | 36346 | 2398 | - | 2436 | = | -38 | * | (120 | / | 503) | = | -9.06560634 | ||
| 4 | 36348 | 2443 | - | 2485 | = | -42 | * | (126 | / | 503) | = | -10.52087471 | ||
| 5 | 36350 | 2472 | - | 2528 | = | -56 | * | (127 | / | 503) | = | -14.13916498 | ||
| 6 | 36352 | 2498 | - | 2552 | = | -54 | * | (130 | / | 503) | = | -13.95626242 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Quartz Hill Elementary | -48 | ||||||||||||
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 | 36509 | 2410 | - | 2436 | = | -26 | * | (109 | / | 471) | = | -6.01698513 | ||
| 4 | 36510 | 2451 | - | 2485 | = | -34 | * | (131 | / | 471) | = | -9.45647556 | ||
| 5 | 36511 | 2434 | - | 2528 | = | -94 | * | (131 | / | 471) | = | -26.1443736 | ||
| 6 | 36512 | 2507 | - | 2552 | = | -45 | * | (100 | / | 471) | = | -9.55414013 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Quartz Hill Elementary | -51 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -37 | -46 | -50 | -48 | -51 | -232.0 | -46.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -31.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -61.4
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 | 50% | 56% | 55% | 62% | 63% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Westside Union 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.
Quartz Hill Elementary math proficiency
Zero+ meets standard.
44% less $meal
51% less $meal
50% less $meal
58% less $meal
57% 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.