Biggs Elementary (Data source)
Source data for Biggs 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 | 134169 | 2380 | - | 2436 | = | -56 | * | (36 | / | 246) | = | -8.19512193 | ||
| 4 | 134172 | 2399 | - | 2485 | = | -86 | * | (29 | / | 246) | = | -10.13821131 | ||
| 5 | 134173 | 2431 | - | 2528 | = | -97 | * | (40 | / | 246) | = | -15.77235772 | ||
| 6 | 134176 | 2436 | - | 2552 | = | -116 | * | (35 | / | 246) | = | -16.50406495 | ||
| 7 | 134177 | 2465 | - | 2567 | = | -102 | * | (55 | / | 246) | = | -22.80487797 | ||
| 8 | 134180 | 2479 | - | 2586 | = | -107 | * | (51 | / | 246) | = | -22.18292681 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Biggs Elementary | -96 | ||||||||||||
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 | 3852 | 2365 | - | 2436 | = | -71 | * | (31 | / | 248) | = | -8.875 | ||
| 4 | 3853 | 2415 | - | 2485 | = | -70 | * | (42 | / | 248) | = | -11.85483866 | ||
| 5 | 3855 | 2419 | - | 2528 | = | -109 | * | (27 | / | 248) | = | -11.8669354 | ||
| 6 | 3857 | 2447 | - | 2552 | = | -105 | * | (41 | / | 248) | = | -17.3588709 | ||
| 7 | 3859 | 2477 | - | 2567 | = | -90 | * | (53 | / | 248) | = | -19.23387093 | ||
| 8 | 3862 | 2465 | - | 2586 | = | -121 | * | (54 | / | 248) | = | -26.34677414 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Biggs Elementary | -96 | ||||||||||||
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 | 3931 | 2361 | - | 2436 | = | -75 | * | (29 | / | 220) | = | -9.88636358 | ||
| 4 | 3934 | 2407 | - | 2485 | = | -78 | * | (30 | / | 220) | = | -10.63636361 | ||
| 5 | 3935 | 2436 | - | 2528 | = | -92 | * | (37 | / | 220) | = | -15.47272726 | ||
| 6 | 3937 | 2449 | - | 2552 | = | -103 | * | (24 | / | 220) | = | -11.23636363 | ||
| 7 | 3939 | 2484 | - | 2567 | = | -83 | * | (49 | / | 220) | = | -18.48636358 | ||
| 8 | 3942 | 2478 | - | 2586 | = | -108 | * | (51 | / | 220) | = | -25.03636355 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Biggs Elementary | -91 | ||||||||||||
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 | 3937 | 2380 | - | 2436 | = | -56 | * | (37 | / | 223) | = | -9.29147979 | ||
| 4 | 3940 | 2397 | - | 2485 | = | -88 | * | (30 | / | 223) | = | -11.83856494 | ||
| 5 | 3941 | 2419 | - | 2528 | = | -109 | * | (37 | / | 223) | = | -18.08520174 | ||
| 6 | 3944 | 2463 | - | 2552 | = | -89 | * | (34 | / | 223) | = | -13.56950666 | ||
| 7 | 3945 | 2428 | - | 2567 | = | -139 | * | (36 | / | 223) | = | -22.4394618 | ||
| 8 | 3948 | 2470 | - | 2586 | = | -116 | * | (49 | / | 223) | = | -25.48878916 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Biggs Elementary | -101 | ||||||||||||
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 | 3980 | 2384 | - | 2436 | = | -52 | * | (36 | / | 222) | = | -8.43243242 | ||
| 4 | 3981 | 2415 | - | 2485 | = | -70 | * | (38 | / | 222) | = | -11.98198197 | ||
| 5 | 3982 | 2409 | - | 2528 | = | -119 | * | (27 | / | 222) | = | -14.4729729 | ||
| 6 | 3983 | 2415 | - | 2552 | = | -137 | * | (31 | / | 222) | = | -19.13063054 | ||
| 7 | 3984 | 2492 | - | 2567 | = | -75 | * | (48 | / | 222) | = | -16.2162162 | ||
| 8 | 3985 | 2424 | - | 2586 | = | -162 | * | (42 | / | 222) | = | -30.64864862 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Biggs Elementary | -101 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -96 | -96 | -91 | -101 | -101 | -485.0 | -97.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -85.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -109.0
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 | 19% | 77% | 68% | 68% | 68% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Biggs Unified school district County of Butte
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.
Biggs Elementary math proficiency
Zero+ meets standard.
19% less $meal
68% less $meal
60% less $meal
65% less $meal
66% 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 Biggs Unified (2)
| Biggs Elementary | Richvale Elementary |