Baywood Elementary (Data source)
Source data for Baywood 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 | 2551950 | 2453 | - | 2436 | = | 17 | * | (98 | / | 329) | = | 5.06382978 | ||
| 4 | 2551951 | 2530 | - | 2485 | = | 45 | * | (111 | / | 329) | = | 15.18237081 | ||
| 5 | 2551954 | 2561 | - | 2528 | = | 33 | * | (120 | / | 329) | = | 12.03647415 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Baywood Elementary | 32 | ||||||||||||
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 | 77777 | 2480 | - | 2436 | = | 44 | * | (115 | / | 317) | = | 15.9621451 | ||
| 4 | 77780 | 2517 | - | 2485 | = | 32 | * | (91 | / | 317) | = | 9.18611987 | ||
| 5 | 77782 | 2574 | - | 2528 | = | 46 | * | (111 | / | 317) | = | 16.10725549 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Baywood Elementary | 41 | ||||||||||||
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 | 79930 | 2486 | - | 2436 | = | 50 | * | (133 | / | 339) | = | 19.61651915 | ||
| 4 | 79933 | 2518 | - | 2485 | = | 33 | * | (117 | / | 339) | = | 11.38938052 | ||
| 5 | 79935 | 2550 | - | 2528 | = | 22 | * | (89 | / | 339) | = | 5.77581121 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Baywood Elementary | 37 | ||||||||||||
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 | 80080 | 2482 | - | 2436 | = | 46 | * | (113 | / | 356) | = | 14.60112358 | ||
| 4 | 80081 | 2528 | - | 2485 | = | 43 | * | (123 | / | 356) | = | 14.85674153 | ||
| 5 | 80084 | 2549 | - | 2528 | = | 21 | * | (120 | / | 356) | = | 7.07865167 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Baywood Elementary | 37 | ||||||||||||
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 | 80573 | 2486 | - | 2436 | = | 50 | * | (138 | / | 367) | = | 18.8010899 | ||
| 4 | 80574 | 2536 | - | 2485 | = | 51 | * | (106 | / | 367) | = | 14.73024519 | ||
| 5 | 80575 | 2545 | - | 2528 | = | 17 | * | (123 | / | 367) | = | 5.69754767 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Baywood Elementary | 39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 32 | 41 | 37 | 37 | 39 | 186.0 | 37.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 46.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 28.2
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 | 19% | 16% | 18% | 18% | 19% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Mateo-Foster City school district | County of San Mateo
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.
Baywood Elementary math proficiency
Zero+ meets standard.
16% less $meal
15% less $meal
16% less $meal
17% less $meal
16% 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.