Anza Elementary (Data source)
Source data for Anza 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 | 1128272 | 2470 | - | 2436 | = | 34 | * | (106 | / | 317) | = | 11.36908517 | ||
4 | 1128273 | 2506 | - | 2485 | = | 21 | * | (94 | / | 317) | = | 6.22712933 | ||
5 | 1128276 | 2561 | - | 2528 | = | 33 | * | (117 | / | 317) | = | 12.17981071 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Anza Elementary | 30 |
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 | 35195 | 2488 | - | 2436 | = | 52 | * | (106 | / | 307) | = | 17.95439734 | ||
4 | 35197 | 2526 | - | 2485 | = | 41 | * | (101 | / | 307) | = | 13.48859935 | ||
5 | 35199 | 2548 | - | 2528 | = | 20 | * | (100 | / | 307) | = | 6.51465798 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Anza Elementary | 38 |
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 | 35893 | 2487 | - | 2436 | = | 51 | * | (102 | / | 315) | = | 16.51428567 | ||
4 | 35896 | 2543 | - | 2485 | = | 58 | * | (113 | / | 315) | = | 20.80634916 | ||
5 | 35897 | 2570 | - | 2528 | = | 42 | * | (100 | / | 315) | = | 13.33333331 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Anza Elementary | 51 |
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 | 35894 | 2488 | - | 2436 | = | 52 | * | (106 | / | 323) | = | 17.06501545 | ||
4 | 35896 | 2556 | - | 2485 | = | 71 | * | (103 | / | 323) | = | 22.64086681 | ||
5 | 35898 | 2590 | - | 2528 | = | 62 | * | (114 | / | 323) | = | 21.88235291 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Anza Elementary | 62 |
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 | 36062 | 2494 | - | 2436 | = | 58 | * | (108 | / | 316) | = | 19.82278476 | ||
4 | 36063 | 2555 | - | 2485 | = | 70 | * | (103 | / | 316) | = | 22.81645569 | ||
5 | 36064 | 2596 | - | 2528 | = | 68 | * | (105 | / | 316) | = | 22.59493671 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Anza Elementary | 65 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
30 | 38 | 51 | 62 | 65 | 246.0 | 49.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 94.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 4.2
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% | 10% | 9% | 12% | 11% |
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.
Anza Elementary math proficiency
Zero+ meets standard.
7% less $meal
8% less $meal
7% less $meal
11% less $meal
10% 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.