Lugonia Elementary (Data source)
Source data for Lugonia 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 | 2023795 | 2411 | - | 2436 | = | -25 | * | (92 | / | 298) | = | -7.7181208 | ||
| 4 | 2023796 | 2446 | - | 2485 | = | -39 | * | (102 | / | 298) | = | -13.34899328 | ||
| 5 | 2023799 | 2477 | - | 2528 | = | -51 | * | (104 | / | 298) | = | -17.79865769 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lugonia Elementary | -39 | ||||||||||||
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 | 62228 | 2421 | - | 2436 | = | -15 | * | (102 | / | 297) | = | -5.15151515 | ||
| 4 | 62230 | 2460 | - | 2485 | = | -25 | * | (97 | / | 297) | = | -8.16498315 | ||
| 5 | 62233 | 2476 | - | 2528 | = | -52 | * | (98 | / | 297) | = | -17.15824911 | ||
| 6 | 62234 | 0 | - | 2552 | = | * | (0 | / | 297) | = | ||||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lugonia Elementary | -30 | ||||||||||||
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 | 64014 | 2426 | - | 2436 | = | -10 | * | (116 | / | 325) | = | -3.56923076 | ||
| 4 | 64017 | 2453 | - | 2485 | = | -32 | * | (105 | / | 325) | = | -10.33846154 | ||
| 5 | 64019 | 2469 | - | 2528 | = | -59 | * | (104 | / | 325) | = | -18.88 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lugonia Elementary | -33 | ||||||||||||
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 | 64119 | 2420 | - | 2436 | = | -16 | * | (127 | / | 361) | = | -5.62880886 | ||
| 4 | 64121 | 2445 | - | 2485 | = | -40 | * | (120 | / | 361) | = | -13.29639888 | ||
| 5 | 64123 | 2473 | - | 2528 | = | -55 | * | (114 | / | 361) | = | -17.36842102 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lugonia Elementary | -36 | ||||||||||||
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 | 64487 | 2399 | - | 2436 | = | -37 | * | (121 | / | 368) | = | -12.16576084 | ||
| 4 | 64488 | 2446 | - | 2485 | = | -39 | * | (121 | / | 368) | = | -12.82336953 | ||
| 5 | 64489 | 2468 | - | 2528 | = | -60 | * | (126 | / | 368) | = | -20.54347824 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lugonia Elementary | -46 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -39 | -30 | -33 | -36 | -46 | -184.0 | -36.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -18.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -54.8
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 | 92% | 93% | 90% | 91% | 93% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Redlands Unified school district County of San Bernardino
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.
Lugonia Elementary math proficiency
Zero+ meets standard.
81% less $meal
84% less $meal
82% less $meal
84% 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.