Bidwell Junior High (Data source)
Source data for Bidwell Junior High
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 |
||
| 7 | 141269 | 2521 | - | 2567 | = | -46 | * | (250 | / | 566) | = | -20.3180212 | ||
| 8 | 141272 | 2555 | - | 2586 | = | -31 | * | (316 | / | 566) | = | -17.30742047 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Bidwell Junior High | -38 | ||||||||||||
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 |
||
| 7 | 4091 | 2543 | - | 2567 | = | -24 | * | (296 | / | 549) | = | -12.93989069 | ||
| 8 | 4093 | 2553 | - | 2586 | = | -33 | * | (253 | / | 549) | = | -15.20765027 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Bidwell Junior High | -28 | ||||||||||||
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 |
||
| 6 | 4165 | 2498 | - | 2552 | = | -54 | * | (313 | / | 918) | = | -18.41176467 | ||
| 7 | 4168 | 2528 | - | 2567 | = | -39 | * | (305 | / | 918) | = | -12.95751631 | ||
| 8 | 4170 | 2551 | - | 2586 | = | -35 | * | (300 | / | 918) | = | -11.43790848 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Bidwell Junior High | -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 |
||
| 6 | 4167 | 2497 | - | 2552 | = | -55 | * | (301 | / | 909) | = | -18.21232122 | ||
| 7 | 4170 | 2535 | - | 2567 | = | -32 | * | (319 | / | 909) | = | -11.22992298 | ||
| 8 | 4171 | 2563 | - | 2586 | = | -23 | * | (289 | / | 909) | = | -7.31243124 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Bidwell Junior High | -37 | ||||||||||||
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 |
||
| 6 | 4221 | 2505 | - | 2552 | = | -47 | * | (323 | / | 935) | = | -16.23636362 | ||
| 7 | 4222 | 2530 | - | 2567 | = | -37 | * | (305 | / | 935) | = | -12.0695187 | ||
| 8 | 4223 | 2556 | - | 2586 | = | -30 | * | (307 | / | 935) | = | -9.85026735 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Bidwell Junior High | -38 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -38 | -28 | -43 | -37 | -38 | -184.0 | -36.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -21.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -51.8
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 | 53% | 49% | 48% | 48% | 50% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Chico Unified school district | County of Butte
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.
Bidwell Junior High math proficiency
Zero+ meets standard.
43% less $meal
39% less $meal
41% less $meal
44% less $meal
42% 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.
Intermediate/Middle Schools (Public) schools in Chico Unified (3)
| Bidwell Junior High | Chico Junior High | Marsh (Harry M.) Junior High |