Arena Elementary (Data source)
Source data for Arena 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 | 1275663 | 2379 | - | 2436 | = | -57 | * | (36 | / | 170) | = | -12.07058819 | ||
| 4 | 1275666 | 2447 | - | 2485 | = | -38 | * | (24 | / | 170) | = | -5.36470586 | ||
| 5 | 1275667 | 2426 | - | 2528 | = | -102 | * | (30 | / | 170) | = | -17.99999998 | ||
| 6 | 1275670 | 2463 | - | 2552 | = | -89 | * | (25 | / | 170) | = | -13.08823525 | ||
| 7 | 1275671 | 2492 | - | 2567 | = | -75 | * | (33 | / | 170) | = | -14.55882353 | ||
| 8 | 1275674 | 2511 | - | 2586 | = | -75 | * | (22 | / | 170) | = | -9.7058823 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Arena Elementary | -73 | ||||||||||||
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 | 39849 | 2402 | - | 2436 | = | -34 | * | (32 | / | 185) | = | -5.88108105 | ||
| 4 | 39850 | 2456 | - | 2485 | = | -29 | * | (36 | / | 185) | = | -5.64324323 | ||
| 5 | 39852 | 2452 | - | 2528 | = | -76 | * | (27 | / | 185) | = | -11.09189182 | ||
| 6 | 39855 | 2440 | - | 2552 | = | -112 | * | (31 | / | 185) | = | -18.7675675 | ||
| 7 | 39857 | 2463 | - | 2567 | = | -104 | * | (26 | / | 185) | = | -14.61621616 | ||
| 8 | 39858 | 2542 | - | 2586 | = | -44 | * | (33 | / | 185) | = | -7.84864863 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Arena Elementary | -64 | ||||||||||||
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 | 40872 | 2396 | - | 2436 | = | -40 | * | (26 | / | 178) | = | -5.8426966 | ||
| 4 | 40873 | 2452 | - | 2485 | = | -33 | * | (32 | / | 178) | = | -5.93258424 | ||
| 5 | 40875 | 2474 | - | 2528 | = | -54 | * | (36 | / | 178) | = | -10.92134831 | ||
| 6 | 40878 | 2468 | - | 2552 | = | -84 | * | (26 | / | 178) | = | -12.26966286 | ||
| 7 | 40880 | 2476 | - | 2567 | = | -91 | * | (30 | / | 178) | = | -15.33707858 | ||
| 8 | 40881 | 2497 | - | 2586 | = | -89 | * | (28 | / | 178) | = | -13.99999993 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Arena Elementary | -64 | ||||||||||||
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 | 40889 | 2387 | - | 2436 | = | -49 | * | (22 | / | 162) | = | -6.65432098 | ||
| 4 | 40890 | 2481 | - | 2485 | = | -4 | * | (23 | / | 162) | = | -0.56790123 | ||
| 5 | 40893 | 2465 | - | 2528 | = | -63 | * | (30 | / | 162) | = | -11.66666666 | ||
| 6 | 40894 | 2491 | - | 2552 | = | -61 | * | (32 | / | 162) | = | -12.0493827 | ||
| 7 | 40897 | 2515 | - | 2567 | = | -52 | * | (26 | / | 162) | = | -8.345679 | ||
| 8 | 40898 | 2500 | - | 2586 | = | -86 | * | (29 | / | 162) | = | -15.39506167 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Arena Elementary | -55 | ||||||||||||
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 | 41041 | 2390 | - | 2436 | = | -46 | * | (27 | / | 159) | = | -7.81132072 | ||
| 4 | 41042 | 2482 | - | 2485 | = | -3 | * | (25 | / | 159) | = | -0.47169811 | ||
| 5 | 41043 | 2481 | - | 2528 | = | -47 | * | (20 | / | 159) | = | -5.91194966 | ||
| 6 | 41044 | 2480 | - | 2552 | = | -72 | * | (29 | / | 159) | = | -13.13207546 | ||
| 7 | 41045 | 2490 | - | 2567 | = | -77 | * | (32 | / | 159) | = | -15.4968553 | ||
| 8 | 41046 | 2463 | - | 2586 | = | -123 | * | (26 | / | 159) | = | -20.11320748 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Arena Elementary | -63 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -73 | -64 | -64 | -55 | -63 | -319.0 | -63.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -45.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -81.8
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 | 72% | 70% | 73% | 84% | 76% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Arena Union Elementary school district | County of Mendocino
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.
Arena Elementary math proficiency
Zero+ meets standard.
59% less $meal
62% less $meal
61% less $meal
72% less $meal
62% 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.
Elementary School (Public) schools in Arena Union Elementary (1)
| Arena Elementary |