Helms Middle (Data source)
Source data for Helms Middle
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 | 243475 | 2466 | - | 2567 | = | -101 | * | (506 | / | 1019) | = | -50.15309126 | ||
| 8 | 243478 | 2474 | - | 2586 | = | -112 | * | (513 | / | 1019) | = | -56.38469077 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Helms Middle | -107 | ||||||||||||
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 | 7141 | 2445 | - | 2567 | = | -122 | * | (484 | / | 967) | = | -61.06308169 | ||
| 8 | 7143 | 2485 | - | 2586 | = | -101 | * | (483 | / | 967) | = | -50.44777654 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Helms Middle | -112 | ||||||||||||
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 |
||
| 7 | 7353 | 2438 | - | 2567 | = | -129 | * | (510 | / | 980) | = | -67.13265303 | ||
| 8 | 7356 | 2442 | - | 2586 | = | -144 | * | (470 | / | 980) | = | -69.06122438 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Helms Middle | -136 | ||||||||||||
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 |
||
| 7 | 7371 | 2423 | - | 2567 | = | -144 | * | (464 | / | 977) | = | -68.3889457 | ||
| 8 | 7374 | 2429 | - | 2586 | = | -157 | * | (513 | / | 977) | = | -82.43705211 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Helms Middle | -151 | ||||||||||||
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 |
||
| 7 | 7422 | 2435 | - | 2567 | = | -132 | * | (418 | / | 865) | = | -63.78728321 | ||
| 8 | 7423 | 2431 | - | 2586 | = | -155 | * | (447 | / | 865) | = | -80.09826578 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Helms Middle | -144 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -107 | -112 | -136 | -151 | -144 | -650.0 | -130.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -73.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -187.0
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 | 93% | 93% | 93% | 93% | 94% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
West Contra Costa Unified school district | County of Contra Costa
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.
Helms Middle math proficiency
Zero+ meets standard.
80% less $meal
82% less $meal
84% less $meal
82% less $meal
83% 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 West Contra Costa Unified (6)
| Crespi Junior High | Fred T. Korematsu Middle | Helms Middle |
| Hercules Middle | Lovonya DeJean Middle | Pinole Middle |