Manzanita Elementary (Data source)
Source data for Manzanita 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 | 1059348 | 2350 | - | 2436 | = | -86 | * | (95 | / | 456) | = | -17.91666664 | ||
| 4 | 1059349 | 2382 | - | 2485 | = | -103 | * | (105 | / | 456) | = | -23.71710517 | ||
| 5 | 1059352 | 2402 | - | 2528 | = | -126 | * | (121 | / | 456) | = | -33.4342105 | ||
| 6 | 1059353 | 2454 | - | 2552 | = | -98 | * | (135 | / | 456) | = | -29.01315784 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Manzanita Elementary | -104 | ||||||||||||
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 | 33248 | 2370 | - | 2436 | = | -66 | * | (110 | / | 456) | = | -15.92105262 | ||
| 4 | 33250 | 2385 | - | 2485 | = | -100 | * | (111 | / | 456) | = | -24.3421052 | ||
| 5 | 33251 | 2421 | - | 2528 | = | -107 | * | (108 | / | 456) | = | -25.34210524 | ||
| 6 | 33254 | 2433 | - | 2552 | = | -119 | * | (127 | / | 456) | = | -33.14254375 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Manzanita Elementary | -99 | ||||||||||||
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 | 33833 | 2377 | - | 2436 | = | -59 | * | (93 | / | 424) | = | -12.9410377 | ||
| 4 | 33835 | 2385 | - | 2485 | = | -100 | * | (117 | / | 424) | = | -27.5943396 | ||
| 5 | 33837 | 2396 | - | 2528 | = | -132 | * | (114 | / | 424) | = | -35.49056597 | ||
| 6 | 33838 | 2420 | - | 2552 | = | -132 | * | (100 | / | 424) | = | -31.13207539 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Manzanita Elementary | -107 | ||||||||||||
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 | 33862 | 2357 | - | 2436 | = | -79 | * | (114 | / | 348) | = | -25.87931027 | ||
| 4 | 33865 | 2381 | - | 2485 | = | -104 | * | (107 | / | 348) | = | -31.97701146 | ||
| 5 | 33866 | 2418 | - | 2528 | = | -110 | * | (127 | / | 348) | = | -40.14367808 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Manzanita Elementary | -98 | ||||||||||||
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 | 34044 | 2370 | - | 2436 | = | -66 | * | (108 | / | 322) | = | -22.13664592 | ||
| 4 | 34045 | 2402 | - | 2485 | = | -83 | * | (109 | / | 322) | = | -28.09627323 | ||
| 5 | 34046 | 2412 | - | 2528 | = | -116 | * | (105 | / | 322) | = | -37.8260869 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Manzanita Elementary | -88 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -104 | -99 | -107 | -98 | -88 | -496.0 | -99.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -78.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -120.2
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 | 89% | 94% | 91% | 92% | 90% |
| 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.
Manzanita Elementary math proficiency
Zero+ meets standard.
81% less $meal
88% less $meal
84% less $meal
87% less $meal
82% 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.