Farb Middle (Data source)
Source data for Farb 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 | 2274186 | 2506 | - | 2552 | = | -46 | * | (140 | / | 400) | = | -16.1 | ||
7 | 2274189 | 2534 | - | 2567 | = | -33 | * | (114 | / | 400) | = | -9.405 | ||
8 | 2274190 | 2554 | - | 2586 | = | -32 | * | (146 | / | 400) | = | -11.68 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Farb Middle | -37 |
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 | 69731 | 2524 | - | 2552 | = | -28 | * | (121 | / | 361) | = | -9.38504154 | ||
7 | 69733 | 2519 | - | 2567 | = | -48 | * | (137 | / | 361) | = | -18.21606648 | ||
8 | 69736 | 2553 | - | 2586 | = | -33 | * | (103 | / | 361) | = | -9.41551245 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Farb Middle | -37 |
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 | 71565 | 2507 | - | 2552 | = | -45 | * | (143 | / | 367) | = | -17.53405992 | ||
7 | 71566 | 2533 | - | 2567 | = | -34 | * | (113 | / | 367) | = | -10.46866484 | ||
8 | 71568 | 2524 | - | 2586 | = | -62 | * | (111 | / | 367) | = | -18.75204359 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Farb Middle | -47 |
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 | 71709 | 2519 | - | 2552 | = | -33 | * | (150 | / | 391) | = | -12.65984653 | ||
7 | 71712 | 2505 | - | 2567 | = | -62 | * | (132 | / | 391) | = | -20.93094623 | ||
8 | 71713 | 2540 | - | 2586 | = | -46 | * | (109 | / | 391) | = | -12.82352939 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Farb Middle | -46 |
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 | 72195 | 2501 | - | 2552 | = | -51 | * | (172 | / | 449) | = | -19.5367483 | ||
7 | 72196 | 2516 | - | 2567 | = | -51 | * | (140 | / | 449) | = | -15.90200441 | ||
8 | 72197 | 2522 | - | 2586 | = | -64 | * | (137 | / | 449) | = | -19.52783962 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Farb Middle | -55 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-37 | -37 | -47 | -46 | -55 | -222.0 | -44.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -23.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -65.4
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 | 75% | 73% | 68% | 69% | 68% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Diego Unified school district County of San Diego
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.
Farb Middle math proficiency
Zero+ meets standard.
41% less $meal
46% less $meal
41% less $meal
42% less $meal
37% 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.