Chico Junior High (Data source)
Source data for Chico 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 | 141524 | 2546 | - | 2567 | = | -21 | * | (298 | / | 607) | = | -10.30971992 | ||
| 8 | 141525 | 2557 | - | 2586 | = | -29 | * | (309 | / | 607) | = | -14.7627677 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Chico Junior High | -25 | ||||||||||||
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 | 4098 | 2537 | - | 2567 | = | -30 | * | (279 | / | 568) | = | -14.73591549 | ||
| 8 | 4099 | 2557 | - | 2586 | = | -29 | * | (289 | / | 568) | = | -14.75528166 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Chico Junior High | -29 | ||||||||||||
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 | 4174 | 2484 | - | 2552 | = | -68 | * | (233 | / | 763) | = | -20.7653997 | ||
| 7 | 4176 | 2534 | - | 2567 | = | -33 | * | (253 | / | 763) | = | -10.94233289 | ||
| 8 | 4178 | 2541 | - | 2586 | = | -45 | * | (277 | / | 763) | = | -16.33682831 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Chico Junior High | -48 | ||||||||||||
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 | 4175 | 2482 | - | 2552 | = | -70 | * | (280 | / | 773) | = | -25.35575679 | ||
| 7 | 4178 | 2547 | - | 2567 | = | -20 | * | (244 | / | 773) | = | -6.31306596 | ||
| 8 | 4179 | 2544 | - | 2586 | = | -42 | * | (249 | / | 773) | = | -13.52910737 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Chico Junior High | -45 | ||||||||||||
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 | 4229 | 2494 | - | 2552 | = | -58 | * | (280 | / | 795) | = | -20.42767291 | ||
| 7 | 4230 | 2535 | - | 2567 | = | -32 | * | (285 | / | 795) | = | -11.47169811 | ||
| 8 | 4231 | 2567 | - | 2586 | = | -19 | * | (230 | / | 795) | = | -5.49685534 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Chico Junior High | -37 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -25 | -29 | -48 | -45 | -37 | -184.0 | -36.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -9.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -63.8
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 | 51% | 50% | 51% | 57% | 60% |
| 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.
Chico Junior High math proficiency
Zero+ meets standard.
46% less $meal
45% less $meal
45% less $meal
52% 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.
Intermediate/Middle Schools (Public) schools in Chico Unified (3)
| Bidwell Junior High | Chico Junior High | Marsh (Harry M.) Junior High |