Laurel Elementary (Data source)
Source data for Laurel 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 | 2554265 | 2405 | - | 2436 | = | -31 | * | (93 | / | 233) | = | -12.37339053 | ||
| 4 | 2554268 | 2479 | - | 2485 | = | -6 | * | (78 | / | 233) | = | -2.00858369 | ||
| 5 | 2554269 | 2529 | - | 2528 | = | 1 | * | (62 | / | 233) | = | 0.26609442 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Laurel Elementary | -14 | ||||||||||||
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 | 77842 | 2441 | - | 2436 | = | 5 | * | (85 | / | 255) | = | 1.66666667 | ||
| 4 | 77843 | 2465 | - | 2485 | = | -20 | * | (89 | / | 255) | = | -6.98039214 | ||
| 5 | 77845 | 2536 | - | 2528 | = | 8 | * | (81 | / | 255) | = | 2.54117646 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Laurel Elementary | -3 | ||||||||||||
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 | 79995 | 2429 | - | 2436 | = | -7 | * | (72 | / | 251) | = | -2.00796812 | ||
| 4 | 79997 | 2449 | - | 2485 | = | -36 | * | (88 | / | 251) | = | -12.62151392 | ||
| 5 | 79998 | 2506 | - | 2528 | = | -22 | * | (91 | / | 251) | = | -7.9760956 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Laurel Elementary | -23 | ||||||||||||
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 | 80144 | 2408 | - | 2436 | = | -28 | * | (75 | / | 225) | = | -9.33333332 | ||
| 4 | 80145 | 2446 | - | 2485 | = | -39 | * | (71 | / | 225) | = | -12.30666665 | ||
| 5 | 80148 | 2495 | - | 2528 | = | -33 | * | (79 | / | 225) | = | -11.58666666 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Laurel Elementary | -33 | ||||||||||||
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 | 80637 | 2434 | - | 2436 | = | -2 | * | (76 | / | 228) | = | -0.66666667 | ||
| 4 | 80638 | 2430 | - | 2485 | = | -55 | * | (76 | / | 228) | = | -18.33333332 | ||
| 5 | 80639 | 2488 | - | 2528 | = | -40 | * | (76 | / | 228) | = | -13.33333332 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Laurel Elementary | -32 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -14 | -3 | -23 | -33 | -32 | -105.0 | -21.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 15.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -57.0
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 | 39% | 39% | 44% | 43% | 44% |
| 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.
Laurel Elementary math proficiency
Zero+ meets standard.
35% less $meal
34% less $meal
37% less $meal
39% less $meal
39% 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.