C L Smith Elementary (Data source)
Source data for C L Smith 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 | 2491591 | 2405 | - | 2436 | = | -31 | * | (56 | / | 205) | = | -8.46829266 | ||
| 4 | 2491594 | 2454 | - | 2485 | = | -31 | * | (50 | / | 205) | = | -7.56097561 | ||
| 5 | 2491595 | 2473 | - | 2528 | = | -55 | * | (38 | / | 205) | = | -10.19512192 | ||
| 6 | 2491598 | 2519 | - | 2552 | = | -33 | * | (61 | / | 205) | = | -9.81951218 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for C L Smith Elementary | -36 | ||||||||||||
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 | 75965 | 2432 | - | 2436 | = | -4 | * | (54 | / | 177) | = | -1.22033898 | ||
| 4 | 75968 | 2476 | - | 2485 | = | -9 | * | (38 | / | 177) | = | -1.93220339 | ||
| 5 | 75970 | 2492 | - | 2528 | = | -36 | * | (50 | / | 177) | = | -10.1694915 | ||
| 6 | 75971 | 2520 | - | 2552 | = | -32 | * | (35 | / | 177) | = | -6.32768358 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for C L Smith Elementary | -20 | ||||||||||||
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 | 78003 | 2411 | - | 2436 | = | -25 | * | (60 | / | 193) | = | -7.77202073 | ||
| 4 | 78004 | 2469 | - | 2485 | = | -16 | * | (39 | / | 193) | = | -3.23316061 | ||
| 5 | 78007 | 2484 | - | 2528 | = | -44 | * | (37 | / | 193) | = | -8.43523314 | ||
| 6 | 78008 | 2535 | - | 2552 | = | -17 | * | (57 | / | 193) | = | -5.02072538 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for C L Smith Elementary | -24 | ||||||||||||
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 | 78157 | 2453 | - | 2436 | = | 17 | * | (44 | / | 185) | = | 4.04324323 | ||
| 4 | 78160 | 2427 | - | 2485 | = | -58 | * | (58 | / | 185) | = | -18.18378375 | ||
| 5 | 78161 | 2487 | - | 2528 | = | -41 | * | (43 | / | 185) | = | -9.52972971 | ||
| 6 | 78164 | 2522 | - | 2552 | = | -30 | * | (40 | / | 185) | = | -6.48648648 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for C L Smith Elementary | -30 | ||||||||||||
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 | 78688 | 2466 | - | 2436 | = | 30 | * | (45 | / | 191) | = | 7.06806282 | ||
| 4 | 78689 | 2507 | - | 2485 | = | 22 | * | (44 | / | 191) | = | 5.06806282 | ||
| 5 | 78690 | 2468 | - | 2528 | = | -60 | * | (58 | / | 191) | = | -18.21989526 | ||
| 6 | 78691 | 2549 | - | 2552 | = | -3 | * | (44 | / | 191) | = | -0.69109948 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for C L Smith Elementary | -7 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -36 | -20 | -24 | -30 | -7 | -117.0 | -23.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 6.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -53.4
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 | 53% | 54% | 49% | 58% | 49% |
| 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.
C L Smith Elementary math proficiency
Zero+ meets standard.
43% less $meal
45% less $meal
43% less $meal
53% less $meal
45% 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.