Liberty Elementary (Data source)
Source data for Liberty 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 | 2570609 | 2370 | - | 2436 | = | -66 | * | (126 | / | 508) | = | -16.37007874 | ||
4 | 2570610 | 2411 | - | 2485 | = | -74 | * | (146 | / | 508) | = | -21.26771648 | ||
5 | 2570613 | 2400 | - | 2528 | = | -128 | * | (143 | / | 508) | = | -36.03149594 | ||
6 | 2570614 | 2462 | - | 2552 | = | -90 | * | (93 | / | 508) | = | -16.47637794 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Liberty Elementary | -90 |
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 | 78328 | 2357 | - | 2436 | = | -79 | * | (110 | / | 469) | = | -18.52878458 | ||
4 | 78329 | 2422 | - | 2485 | = | -63 | * | (117 | / | 469) | = | -15.71641785 | ||
5 | 78332 | 2416 | - | 2528 | = | -112 | * | (128 | / | 469) | = | -30.5671641 | ||
6 | 78333 | 2440 | - | 2552 | = | -112 | * | (114 | / | 469) | = | -27.22388054 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Liberty Elementary | -92 |
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 | 80485 | 2381 | - | 2436 | = | -55 | * | (120 | / | 523) | = | -12.61950283 | ||
4 | 80486 | 2411 | - | 2485 | = | -74 | * | (128 | / | 523) | = | -18.1108986 | ||
5 | 80488 | 2417 | - | 2528 | = | -111 | * | (133 | / | 523) | = | -28.22753343 | ||
6 | 80490 | 2442 | - | 2552 | = | -110 | * | (142 | / | 523) | = | -29.86615676 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Liberty Elementary | -89 |
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 | 80642 | 2375 | - | 2436 | = | -61 | * | (114 | / | 490) | = | -14.19183672 | ||
4 | 80643 | 2438 | - | 2485 | = | -47 | * | (124 | / | 490) | = | -11.89387753 | ||
5 | 80646 | 2415 | - | 2528 | = | -113 | * | (122 | / | 490) | = | -28.13469378 | ||
6 | 80647 | 2458 | - | 2552 | = | -94 | * | (130 | / | 490) | = | -24.93877547 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Liberty Elementary | -79 |
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 | 81159 | 2369 | - | 2436 | = | -67 | * | (116 | / | 476) | = | -16.32773103 | ||
4 | 81160 | 2422 | - | 2485 | = | -63 | * | (112 | / | 476) | = | -14.82352937 | ||
5 | 81161 | 2447 | - | 2528 | = | -81 | * | (123 | / | 476) | = | -20.93067224 | ||
6 | 81162 | 2435 | - | 2552 | = | -117 | * | (125 | / | 476) | = | -30.72478991 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Liberty Elementary | -83 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-90 | -92 | -89 | -79 | -83 | -433.0 | -86.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -71.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -101.6
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 | 78% | 85% | 77% | 87% | 89% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Maria-Bonita school district County of Santa Barbara
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Liberty Elementary math proficiency
Zero+ meets standard.
65% less $meal
71% less $meal
65% less $meal
79% less $meal
81% 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.