Cornerstone at Pedregal Elementary (Data source)
Source data for Cornerstone at Pedregal 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 | 1068620 | 2514 | - | 2436 | = | 78 | * | (64 | / | 192) | = | 25.99999997 | ||
4 | 1068623 | 2556 | - | 2485 | = | 71 | * | (64 | / | 192) | = | 23.66666664 | ||
5 | 1068624 | 2588 | - | 2528 | = | 60 | * | (64 | / | 192) | = | 19.99999998 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Cornerstone at Pedregal Elementary | 70 |
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 | 33506 | 2508 | - | 2436 | = | 72 | * | (72 | / | 190) | = | 27.2842105 | ||
4 | 33507 | 2559 | - | 2485 | = | 74 | * | (58 | / | 190) | = | 22.58947362 | ||
5 | 33510 | 2587 | - | 2528 | = | 59 | * | (60 | / | 190) | = | 18.63157891 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Cornerstone at Pedregal Elementary | 69 |
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 | 34106 | 2521 | - | 2436 | = | 85 | * | (62 | / | 186) | = | 28.33333331 | ||
4 | 34108 | 2537 | - | 2485 | = | 52 | * | (68 | / | 186) | = | 19.01075264 | ||
5 | 34110 | 2584 | - | 2528 | = | 56 | * | (56 | / | 186) | = | 16.86021501 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Cornerstone at Pedregal Elementary | 64 |
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 | 34111 | 2501 | - | 2436 | = | 65 | * | (58 | / | 190) | = | 19.84210521 | ||
4 | 34112 | 2544 | - | 2485 | = | 59 | * | (63 | / | 190) | = | 19.56315787 | ||
5 | 34115 | 2560 | - | 2528 | = | 32 | * | (69 | / | 190) | = | 11.62105261 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Cornerstone at Pedregal Elementary | 51 |
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 | 34276 | 2517 | - | 2436 | = | 81 | * | (67 | / | 185) | = | 29.33513512 | ||
4 | 34277 | 2548 | - | 2485 | = | 63 | * | (55 | / | 185) | = | 18.72972971 | ||
5 | 34278 | 2591 | - | 2528 | = | 63 | * | (63 | / | 185) | = | 21.45405402 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Cornerstone at Pedregal Elementary | 70 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
70 | 69 | 64 | 51 | 70 | 324.0 | 64.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 88.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 40.8
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 | 0% | 1% | 0% | 3% | 5% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palos Verdes Peninsula Unified school district | County of Los Angeles
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Cornerstone at Pedregal Elementary math proficiency
Zero+ meets standard.
0% less $meal
1% less $meal
0% less $meal
3% less $meal
4% 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.