Cordua Elementary (Data source)
Source data for Cordua 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 | 3195524 | 2371 | - | 2436 | = | -65 | * | (15 | / | 51) | = | -19.11764706 | ||
| 4 | 3195527 | 2434 | - | 2485 | = | -51 | * | (19 | / | 51) | = | -18.99999997 | ||
| 5 | 3195528 | 2445 | - | 2528 | = | -83 | * | (17 | / | 51) | = | -27.66666664 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Cordua Elementary | -66 | ||||||||||||
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 | 98501 | 2381 | - | 2436 | = | -55 | * | (15 | / | 42) | = | -19.64285714 | ||
| 4 | 98503 | 2457 | - | 2485 | = | -28 | * | (12 | / | 42) | = | -7.99999998 | ||
| 5 | 98505 | 2464 | - | 2528 | = | -64 | * | (15 | / | 42) | = | -22.85714285 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Cordua Elementary | -50 | ||||||||||||
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 | 101368 | 2402 | - | 2436 | = | -34 | * | (26 | / | 54) | = | -16.37037035 | ||
| 4 | 101370 | 2429 | - | 2485 | = | -56 | * | (14 | / | 54) | = | -14.5185185 | ||
| 5 | 101371 | 2469 | - | 2528 | = | -59 | * | (14 | / | 54) | = | -15.29629628 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Cordua Elementary | -46 | ||||||||||||
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 | 101522 | 2405 | - | 2436 | = | -31 | * | (16 | / | 54) | = | -9.18518518 | ||
| 4 | 101525 | 2451 | - | 2485 | = | -34 | * | (23 | / | 54) | = | -14.48148145 | ||
| 5 | 101526 | 2486 | - | 2528 | = | -42 | * | (15 | / | 54) | = | -11.66666663 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Cordua Elementary | -35 | ||||||||||||
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 | 102173 | 2429 | - | 2436 | = | -7 | * | (19 | / | 51) | = | -2.60784313 | ||
| 4 | 102174 | 2440 | - | 2485 | = | -45 | * | (13 | / | 51) | = | -11.4705882 | ||
| 5 | 102175 | 2450 | - | 2528 | = | -78 | * | (19 | / | 51) | = | -29.05882348 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Cordua Elementary | -43 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -66 | -50 | -46 | -35 | -43 | -240.0 | -48.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -15.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -81.0
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 | 64% | 65% | 67% | 64% | 57% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Marysville Joint Unified school district | County of Yuba
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.
Cordua Elementary math proficiency
Zero+ meets standard.
54% less $meal
59% less $meal
60% less $meal
60% less $meal
55% 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.