Weathersfield Elementary (Data source)
Source data for Weathersfield 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 | 3156654 | 2400 | - | 2436 | = | -36 | * | (48 | / | 119) | = | -14.52100838 | ||
| 4 | 3156655 | 0 | - | 2485 | = | * | (0 | / | 119) | = | ||||
| 5 | 3156658 | 2524 | - | 2528 | = | -4 | * | (71 | / | 119) | = | -2.38655462 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Weathersfield Elementary | -17 | ||||||||||||
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 | 97283 | 2444 | - | 2436 | = | 8 | * | (67 | / | 214) | = | 2.5046729 | ||
| 4 | 97285 | 2465 | - | 2485 | = | -20 | * | (79 | / | 214) | = | -7.38317756 | ||
| 5 | 97286 | 2507 | - | 2528 | = | -21 | * | (68 | / | 214) | = | -6.67289719 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Weathersfield Elementary | -12 | ||||||||||||
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 | 100107 | 2443 | - | 2436 | = | 7 | * | (46 | / | 184) | = | 1.75 | ||
| 4 | 100110 | 2470 | - | 2485 | = | -15 | * | (57 | / | 184) | = | -4.64673912 | ||
| 5 | 100112 | 2494 | - | 2528 | = | -34 | * | (81 | / | 184) | = | -14.96739129 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Weathersfield Elementary | -18 | ||||||||||||
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 | 100262 | 2485 | - | 2436 | = | 49 | * | (35 | / | 138) | = | 12.42753621 | ||
| 4 | 100265 | 2503 | - | 2485 | = | 18 | * | (45 | / | 138) | = | 5.86956521 | ||
| 5 | 100266 | 2514 | - | 2528 | = | -14 | * | (58 | / | 138) | = | -5.88405797 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Weathersfield Elementary | 12 | ||||||||||||
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 | 100927 | 2468 | - | 2436 | = | 32 | * | (39 | / | 122) | = | 10.22950819 | ||
| 4 | 100928 | 2538 | - | 2485 | = | 53 | * | (37 | / | 122) | = | 16.07377046 | ||
| 5 | 100929 | 2537 | - | 2528 | = | 9 | * | (46 | / | 122) | = | 3.39344262 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Weathersfield Elementary | 30 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -17 | -12 | -18 | 12 | 30 | -5.0 | -1.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 62.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -64.0
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 | 28% | 25% | 27% | 32% | 30% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Conejo Valley Unified school district | County of Ventura
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.
Weathersfield Elementary math proficiency
Zero+ meets standard.
23% less $meal
21% less $meal
21% less $meal
28% less $meal
27% 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.