Perdew Elementary (Data source)
Source data for Perdew 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 | 1977667 | 2440 | - | 2436 | = | 4 | * | (159 | / | 428) | = | 1.48598131 | ||
| 4 | 1977670 | 2488 | - | 2485 | = | 3 | * | (143 | / | 428) | = | 1.00233645 | ||
| 5 | 1977671 | 2533 | - | 2528 | = | 5 | * | (126 | / | 428) | = | 1.47196262 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Perdew Elementary | 4 | ||||||||||||
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 | 60852 | 2450 | - | 2436 | = | 14 | * | (120 | / | 414) | = | 4.05797101 | ||
| 4 | 60855 | 2499 | - | 2485 | = | 14 | * | (158 | / | 414) | = | 5.34299517 | ||
| 5 | 60857 | 2529 | - | 2528 | = | 1 | * | (136 | / | 414) | = | 0.32850242 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Perdew Elementary | 10 | ||||||||||||
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 | 62605 | 2459 | - | 2436 | = | 23 | * | (129 | / | 405) | = | 7.32592591 | ||
| 4 | 62606 | 2500 | - | 2485 | = | 15 | * | (121 | / | 405) | = | 4.48148148 | ||
| 5 | 62608 | 2542 | - | 2528 | = | 14 | * | (155 | / | 405) | = | 5.35802469 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Perdew Elementary | 17 | ||||||||||||
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 | 62685 | 2451 | - | 2436 | = | 15 | * | (136 | / | 419) | = | 4.86873507 | ||
| 4 | 62686 | 2499 | - | 2485 | = | 14 | * | (152 | / | 419) | = | 5.07875894 | ||
| 5 | 62689 | 2533 | - | 2528 | = | 5 | * | (131 | / | 419) | = | 1.56324582 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Perdew Elementary | 12 | ||||||||||||
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 | 62953 | 2462 | - | 2436 | = | 26 | * | (136 | / | 439) | = | 8.05466969 | ||
| 4 | 62954 | 2508 | - | 2485 | = | 23 | * | (148 | / | 439) | = | 7.75398632 | ||
| 5 | 62955 | 2554 | - | 2528 | = | 26 | * | (155 | / | 439) | = | 9.17995442 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Perdew Elementary | 25 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 4 | 10 | 17 | 12 | 25 | 68.0 | 13.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 34.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -7.4
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 | 40% | 44% | 46% | 50% | 51% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Etiwanda Elementary school district County of San Bernardino
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.
Perdew Elementary math proficiency
Zero+ meets standard.
33% less $meal
36% less $meal
37% less $meal
45% less $meal
45% 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.