Nancy Cory Elementary (Data source)
Source data for Nancy Cory 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 | 743681 | 2397 | - | 2436 | = | -39 | * | (87 | / | 359) | = | -9.45125345 | ||
4 | 743684 | 2417 | - | 2485 | = | -68 | * | (80 | / | 359) | = | -15.1532033 | ||
5 | 743685 | 2433 | - | 2528 | = | -95 | * | (101 | / | 359) | = | -26.72701947 | ||
6 | 743688 | 2457 | - | 2552 | = | -95 | * | (91 | / | 359) | = | -24.08077993 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Nancy Cory Elementary | -75 |
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 | 23397 | 2407 | - | 2436 | = | -29 | * | (96 | / | 383) | = | -7.26892949 | ||
4 | 23398 | 2433 | - | 2485 | = | -52 | * | (97 | / | 383) | = | -13.16971276 | ||
5 | 23400 | 2431 | - | 2528 | = | -97 | * | (99 | / | 383) | = | -25.07310698 | ||
6 | 23403 | 2472 | - | 2552 | = | -80 | * | (91 | / | 383) | = | -19.00783288 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Nancy Cory Elementary | -65 |
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 | 23852 | 2401 | - | 2436 | = | -35 | * | (94 | / | 396) | = | -8.3080808 | ||
4 | 23855 | 2437 | - | 2485 | = | -48 | * | (103 | / | 396) | = | -12.48484848 | ||
5 | 23857 | 2440 | - | 2528 | = | -88 | * | (110 | / | 396) | = | -24.44444438 | ||
6 | 23858 | 2475 | - | 2552 | = | -77 | * | (89 | / | 396) | = | -17.3055555 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Nancy Cory Elementary | -63 |
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 | 23873 | 2397 | - | 2436 | = | -39 | * | (106 | / | 410) | = | -10.08292682 | ||
4 | 23874 | 2417 | - | 2485 | = | -68 | * | (104 | / | 410) | = | -17.24878045 | ||
5 | 23877 | 2435 | - | 2528 | = | -93 | * | (109 | / | 410) | = | -24.72439019 | ||
6 | 23878 | 2485 | - | 2552 | = | -67 | * | (91 | / | 410) | = | -14.87073167 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Nancy Cory Elementary | -67 |
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 | 24049 | 2402 | - | 2436 | = | -34 | * | (122 | / | 433) | = | -9.57967666 | ||
4 | 24050 | 2441 | - | 2485 | = | -44 | * | (109 | / | 433) | = | -11.07621244 | ||
5 | 24051 | 2445 | - | 2528 | = | -83 | * | (111 | / | 433) | = | -21.27713624 | ||
6 | 24052 | 2495 | - | 2552 | = | -57 | * | (91 | / | 433) | = | -11.97921473 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Nancy Cory Elementary | -54 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-75 | -65 | -63 | -67 | -54 | -324.0 | -64.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -43.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -85.8
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 | 75% | 74% | 71% | 77% | 85% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lancaster Elementary 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.
Nancy Cory Elementary math proficiency
Zero+ meets standard.
66% less $meal
70% less $meal
62% less $meal
70% less $meal
71% 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.