Hoover (Herbert) Middle (Data source)
Source data for Hoover (Herbert) Middle
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 |
||
| 6 | 2375494 | 2557 | - | 2552 | = | 5 | * | (297 | / | 933) | = | 1.59163987 | ||
| 7 | 2375497 | 2567 | - | 2567 | = | 0 | * | (313 | / | 933) | = | 0.0 | ||
| 8 | 2375498 | 2606 | - | 2586 | = | 20 | * | (323 | / | 933) | = | 6.92390138 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Hoover (Herbert) Middle | 9 | ||||||||||||
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 |
||
| 6 | 72556 | 2544 | - | 2552 | = | -8 | * | (315 | / | 938) | = | -2.68656716 | ||
| 7 | 72558 | 2606 | - | 2567 | = | 39 | * | (315 | / | 938) | = | 13.09701491 | ||
| 8 | 72560 | 2593 | - | 2586 | = | 7 | * | (308 | / | 938) | = | 2.29850746 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Hoover (Herbert) Middle | 13 | ||||||||||||
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 |
||
| 6 | 74530 | 2544 | - | 2552 | = | -8 | * | (321 | / | 945) | = | -2.71746031 | ||
| 7 | 74532 | 2600 | - | 2567 | = | 33 | * | (313 | / | 945) | = | 10.93015872 | ||
| 8 | 74533 | 2615 | - | 2586 | = | 29 | * | (311 | / | 945) | = | 9.54391534 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Hoover (Herbert) Middle | 18 | ||||||||||||
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 |
||
| 6 | 74704 | 2542 | - | 2552 | = | -10 | * | (315 | / | 925) | = | -3.4054054 | ||
| 7 | 74705 | 2569 | - | 2567 | = | 2 | * | (304 | / | 925) | = | 0.6572973 | ||
| 8 | 74708 | 2617 | - | 2586 | = | 31 | * | (306 | / | 925) | = | 10.25513511 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Hoover (Herbert) Middle | 8 | ||||||||||||
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 |
||
| 6 | 75229 | 2542 | - | 2552 | = | -10 | * | (328 | / | 953) | = | -3.44176285 | ||
| 7 | 75230 | 2585 | - | 2567 | = | 18 | * | (315 | / | 953) | = | 5.94963274 | ||
| 8 | 75231 | 2603 | - | 2586 | = | 17 | * | (310 | / | 953) | = | 5.52990555 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Hoover (Herbert) Middle | 8 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 9 | 13 | 18 | 8 | 8 | 56.0 | 11.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 23.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -0.8
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 | 73% | 65% | 64% | 62% | 60% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Francisco Unified school district | County of San Francisco
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.
Hoover (Herbert) Middle math proficiency
Zero+ meets standard.
52% less $meal
51% less $meal
50% less $meal
50% less $meal
47% 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.