George Hall Elementary (Data source)
Source data for George Hall 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 | 2553687 | 2419 | - | 2436 | = | -17 | * | (59 | / | 183) | = | -5.48087431 | ||
| 4 | 2553690 | 2464 | - | 2485 | = | -21 | * | (65 | / | 183) | = | -7.45901638 | ||
| 5 | 2553691 | 2530 | - | 2528 | = | 2 | * | (59 | / | 183) | = | 0.64480874 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for George Hall Elementary | -12 | ||||||||||||
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 | 77825 | 2457 | - | 2436 | = | 21 | * | (75 | / | 200) | = | 7.875 | ||
| 4 | 77828 | 2439 | - | 2485 | = | -46 | * | (58 | / | 200) | = | -13.34 | ||
| 5 | 77830 | 2522 | - | 2528 | = | -6 | * | (67 | / | 200) | = | -2.01 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for George Hall Elementary | -7 | ||||||||||||
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 | 79979 | 2424 | - | 2436 | = | -12 | * | (74 | / | 195) | = | -4.55384615 | ||
| 4 | 79981 | 2480 | - | 2485 | = | -5 | * | (75 | / | 195) | = | -1.92307692 | ||
| 5 | 79982 | 2518 | - | 2528 | = | -10 | * | (46 | / | 195) | = | -2.35897435 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for George Hall Elementary | -9 | ||||||||||||
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 | 80127 | 2439 | - | 2436 | = | 3 | * | (53 | / | 193) | = | 0.82383419 | ||
| 4 | 80129 | 2464 | - | 2485 | = | -21 | * | (64 | / | 193) | = | -6.96373056 | ||
| 5 | 80131 | 2536 | - | 2528 | = | 8 | * | (76 | / | 193) | = | 3.15025906 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for George Hall Elementary | -3 | ||||||||||||
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 | 80621 | 2437 | - | 2436 | = | 1 | * | (67 | / | 180) | = | 0.37222222 | ||
| 4 | 80622 | 2495 | - | 2485 | = | 10 | * | (52 | / | 180) | = | 2.88888888 | ||
| 5 | 80623 | 2550 | - | 2528 | = | 22 | * | (61 | / | 180) | = | 7.45555554 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for George Hall Elementary | 11 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -12 | -7 | -9 | -3 | 11 | -20.0 | -4.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 23.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -31.0
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 | 45% | 34% | 33% | 32% | 26% |
| 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.
George Hall Elementary math proficiency
Zero+ meets standard.
38% less $meal
27% less $meal
27% less $meal
28% less $meal
24% 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.