Riviera Elementary (Data source)
Source data for Riviera 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 | 1132930 | 2478 | - | 2436 | = | 42 | * | (109 | / | 325) | = | 14.08615383 | ||
4 | 1132931 | 2530 | - | 2485 | = | 45 | * | (104 | / | 325) | = | 14.4 | ||
5 | 1132934 | 2555 | - | 2528 | = | 27 | * | (112 | / | 325) | = | 9.30461537 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Riviera Elementary | 38 |
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 | 35316 | 2484 | - | 2436 | = | 48 | * | (114 | / | 332) | = | 16.48192766 | ||
4 | 35318 | 2532 | - | 2485 | = | 47 | * | (111 | / | 332) | = | 15.7138554 | ||
5 | 35320 | 2551 | - | 2528 | = | 23 | * | (107 | / | 332) | = | 7.41265059 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Riviera Elementary | 40 |
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 | 36013 | 2472 | - | 2436 | = | 36 | * | (103 | / | 330) | = | 11.23636363 | ||
4 | 36016 | 2545 | - | 2485 | = | 60 | * | (113 | / | 330) | = | 20.54545452 | ||
5 | 36018 | 2570 | - | 2528 | = | 42 | * | (114 | / | 330) | = | 14.50909089 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Riviera Elementary | 46 |
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 | 36014 | 2483 | - | 2436 | = | 47 | * | (97 | / | 319) | = | 14.29153605 | ||
4 | 36016 | 2516 | - | 2485 | = | 31 | * | (106 | / | 319) | = | 10.30094043 | ||
5 | 36018 | 2561 | - | 2528 | = | 33 | * | (116 | / | 319) | = | 11.99999998 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Riviera Elementary | 37 |
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 | 36182 | 2481 | - | 2436 | = | 45 | * | (107 | / | 309) | = | 15.58252427 | ||
4 | 36183 | 2535 | - | 2485 | = | 50 | * | (96 | / | 309) | = | 15.53398055 | ||
5 | 36184 | 2537 | - | 2528 | = | 9 | * | (106 | / | 309) | = | 3.08737864 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Riviera Elementary | 34 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
38 | 40 | 46 | 37 | 34 | 195.0 | 39.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 51.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 27.0
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 | 9% | 11% | 11% | 14% | 15% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Torrance Unified school district County of Los Angeles
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.
Riviera Elementary math proficiency
Zero+ meets standard.
7% less $meal
8% less $meal
7% less $meal
12% less $meal
13% 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.