Downtown High (Data source)
Source data for Downtown High
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 |
||
11 | 2355968 | 2437 | - | 2628 | = | -191 | * | (20 | / | 20) | = | -191.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Downtown High | -191 |
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 |
||
11 | 71998 | 2417 | - | 2628 | = | -211 | * | (15 | / | 15) | = | -211.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Downtown High | -211 |
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 |
||
11 | 73975 | 0 | - | 2628 | = | * | (0 | / | 0) | = | ||||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Downtown High |
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 |
||
11 | 74150 | 2377 | - | 2628 | = | -251 | * | (12 | / | 12) | = | -251.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Downtown High | -251 |
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 |
||
11 | 74673 | 0 | - | 2628 | = | * | (0 | / | 0) | = | ||||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Downtown High |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-191 | -211 | -251 | -653.0 | -130.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -127.666666666666666667
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -307.666666666666666667
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 | 80% | 75% | 78% | 78% | 72% |
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, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Downtown High math proficiency
Zero+ meets standard.
75% less $meal
71% less $meal
72% 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.
Continuation High Schools schools in San Francisco Unified (2)
Downtown High | Wells (Ida B.) High |