Del Mar Elementary (Data source)
Source data for Del Mar 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 | 2491929 | 2421 | - | 2436 | = | -15 | * | (76 | / | 215) | = | -5.30232558 | ||
| 4 | 2491932 | 2462 | - | 2485 | = | -23 | * | (65 | / | 215) | = | -6.95348836 | ||
| 5 | 2491933 | 2493 | - | 2528 | = | -35 | * | (74 | / | 215) | = | -12.04651161 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Del Mar Elementary | -24 | ||||||||||||
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 | 75976 | 2458 | - | 2436 | = | 22 | * | (53 | / | 185) | = | 6.30270269 | ||
| 4 | 75977 | 2489 | - | 2485 | = | 4 | * | (70 | / | 185) | = | 1.51351351 | ||
| 5 | 75979 | 2489 | - | 2528 | = | -39 | * | (62 | / | 185) | = | -13.07027027 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Del Mar Elementary | -5 | ||||||||||||
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 | 78013 | 2464 | - | 2436 | = | 28 | * | (75 | / | 201) | = | 10.44776118 | ||
| 4 | 78015 | 2515 | - | 2485 | = | 30 | * | (57 | / | 201) | = | 8.50746267 | ||
| 5 | 78017 | 2518 | - | 2528 | = | -10 | * | (69 | / | 201) | = | -3.43283582 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Del Mar Elementary | 16 | ||||||||||||
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 | 78168 | 2468 | - | 2436 | = | 32 | * | (63 | / | 173) | = | 11.65317917 | ||
| 4 | 78169 | 2504 | - | 2485 | = | 19 | * | (55 | / | 173) | = | 6.04046243 | ||
| 5 | 78172 | 2540 | - | 2528 | = | 12 | * | (55 | / | 173) | = | 3.8150289 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Del Mar Elementary | 22 | ||||||||||||
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 | 78697 | 2457 | - | 2436 | = | 21 | * | (52 | / | 165) | = | 6.61818182 | ||
| 4 | 78698 | 2506 | - | 2485 | = | 21 | * | (60 | / | 165) | = | 7.63636362 | ||
| 5 | 78699 | 2523 | - | 2528 | = | -5 | * | (53 | / | 165) | = | -1.60606061 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Del Mar Elementary | 13 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -24 | -5 | 16 | 22 | 13 | 22.0 | 4.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 58.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -49.6
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 | 59% | 57% | 54% | 58% | 53% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Luis Coastal Unified school district | County of San Luis Obispo
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.
Del Mar Elementary math proficiency
Zero+ meets standard.
45% less $meal
47% less $meal
43% less $meal
49% less $meal
44% 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.