Blossom Valley Elementary (Data source)
Source data for Blossom Valley 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 | 2124195 | 2421 | - | 2436 | = | -15 | * | (101 | / | 271) | = | -5.59040589 | ||
| 4 | 2124197 | 2459 | - | 2485 | = | -26 | * | (94 | / | 271) | = | -9.01845017 | ||
| 5 | 2124198 | 2503 | - | 2528 | = | -25 | * | (76 | / | 271) | = | -7.0110701 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Blossom Valley Elementary | -22 | ||||||||||||
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 | 65230 | 2448 | - | 2436 | = | 12 | * | (77 | / | 287) | = | 3.21951218 | ||
| 4 | 65233 | 2493 | - | 2485 | = | 8 | * | (111 | / | 287) | = | 3.09407665 | ||
| 5 | 65235 | 2505 | - | 2528 | = | -23 | * | (99 | / | 287) | = | -7.93379791 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Blossom Valley Elementary | -2 | ||||||||||||
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 | 67046 | 2459 | - | 2436 | = | 23 | * | (89 | / | 285) | = | 7.18245612 | ||
| 4 | 67048 | 2489 | - | 2485 | = | 4 | * | (84 | / | 285) | = | 1.17894737 | ||
| 5 | 67051 | 2508 | - | 2528 | = | -20 | * | (112 | / | 285) | = | -7.85964912 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Blossom Valley Elementary | 1 | ||||||||||||
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 | 67150 | 2461 | - | 2436 | = | 25 | * | (67 | / | 244) | = | 6.86475408 | ||
| 4 | 67153 | 2514 | - | 2485 | = | 29 | * | (94 | / | 244) | = | 11.17213113 | ||
| 5 | 67154 | 2514 | - | 2528 | = | -14 | * | (83 | / | 244) | = | -4.76229508 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Blossom Valley Elementary | 13 | ||||||||||||
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 | 67647 | 2464 | - | 2436 | = | 28 | * | (72 | / | 257) | = | 7.84435798 | ||
| 4 | 67648 | 2513 | - | 2485 | = | 28 | * | (78 | / | 257) | = | 8.49805446 | ||
| 5 | 67649 | 2534 | - | 2528 | = | 6 | * | (107 | / | 257) | = | 2.49805447 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Blossom Valley Elementary | 19 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -22 | -2 | 1 | 13 | 19 | 9.0 | 1.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 46.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -43.2
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% | 31% | 29% | 23% | 23% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Cajon Valley Union school district | County of San Diego
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.
Blossom Valley Elementary math proficiency
Zero+ meets standard.
23% less $meal
27% less $meal
25% less $meal
21% less $meal
21% 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.