Fairgrove Elementary (Data source)
Source data for Fairgrove 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 | 2487524 | 2403 | - | 2436 | = | -33 | * | (78 | / | 258) | = | -9.97674417 | ||
| 4 | 2487525 | 2421 | - | 2485 | = | -64 | * | (58 | / | 258) | = | -14.38759686 | ||
| 5 | 2487528 | 2497 | - | 2528 | = | -31 | * | (63 | / | 258) | = | -7.56976743 | ||
| 6 | 2487529 | 2514 | - | 2552 | = | -38 | * | (59 | / | 258) | = | -8.68992246 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Fairgrove Elementary | -41 | ||||||||||||
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 | 75837 | 2419 | - | 2436 | = | -17 | * | (67 | / | 272) | = | -4.18749999 | ||
| 4 | 75839 | 2447 | - | 2485 | = | -38 | * | (81 | / | 272) | = | -11.31617645 | ||
| 5 | 75841 | 2472 | - | 2528 | = | -56 | * | (60 | / | 272) | = | -12.35294116 | ||
| 6 | 75843 | 2534 | - | 2552 | = | -18 | * | (64 | / | 272) | = | -4.23529411 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Fairgrove Elementary | -32 | ||||||||||||
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 | 77871 | 2422 | - | 2436 | = | -14 | * | (46 | / | 256) | = | -2.515625 | ||
| 4 | 77872 | 2450 | - | 2485 | = | -35 | * | (73 | / | 256) | = | -9.98046875 | ||
| 5 | 77874 | 2455 | - | 2528 | = | -73 | * | (80 | / | 256) | = | -22.8125 | ||
| 6 | 77877 | 2516 | - | 2552 | = | -36 | * | (57 | / | 256) | = | -8.015625 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Fairgrove Elementary | -43 | ||||||||||||
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 | 78032 | 2433 | - | 2436 | = | -3 | * | (65 | / | 253) | = | -0.77075099 | ||
| 4 | 78033 | 2451 | - | 2485 | = | -34 | * | (46 | / | 253) | = | -6.18181815 | ||
| 5 | 78036 | 2487 | - | 2528 | = | -41 | * | (68 | / | 253) | = | -11.01976282 | ||
| 6 | 78037 | 2505 | - | 2552 | = | -47 | * | (74 | / | 253) | = | -13.74703555 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Fairgrove Elementary | -32 | ||||||||||||
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 | 78564 | 2415 | - | 2436 | = | -21 | * | (62 | / | 229) | = | -5.68558952 | ||
| 4 | 78565 | 2486 | - | 2485 | = | 1 | * | (58 | / | 229) | = | 0.25327511 | ||
| 5 | 78566 | 2485 | - | 2528 | = | -43 | * | (45 | / | 229) | = | -8.44978165 | ||
| 6 | 78567 | 2493 | - | 2552 | = | -59 | * | (64 | / | 229) | = | -16.48908294 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Fairgrove Elementary | -30 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -41 | -32 | -43 | -32 | -30 | -178.0 | -35.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -20.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -50.6
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 | 67% | 68% | 62% | 65% | 59% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lucia Mar Unified school district | County of San Luis Obispo
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.
Fairgrove Elementary math proficiency
Zero+ meets standard.
55% less $meal
57% less $meal
50% less $meal
57% less $meal
51% 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.