Crescent Elementary (Data source)
Source data for Crescent 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 | 1511859 | 2481 | - | 2436 | = | 45 | * | (114 | / | 491) | = | 10.44806517 | ||
| 4 | 1511862 | 2523 | - | 2485 | = | 38 | * | (119 | / | 491) | = | 9.20977595 | ||
| 5 | 1511863 | 2541 | - | 2528 | = | 13 | * | (131 | / | 491) | = | 3.46843176 | ||
| 6 | 1511866 | 2601 | - | 2552 | = | 49 | * | (127 | / | 491) | = | 12.6741344 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Crescent Elementary | 36 | ||||||||||||
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 | 47380 | 2483 | - | 2436 | = | 47 | * | (112 | / | 502) | = | 10.48605574 | ||
| 4 | 47383 | 2528 | - | 2485 | = | 43 | * | (134 | / | 502) | = | 11.47808761 | ||
| 5 | 47384 | 2557 | - | 2528 | = | 29 | * | (124 | / | 502) | = | 7.16334661 | ||
| 6 | 47386 | 2600 | - | 2552 | = | 48 | * | (132 | / | 502) | = | 12.62151394 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Crescent Elementary | 42 | ||||||||||||
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 | 48683 | 2495 | - | 2436 | = | 59 | * | (119 | / | 502) | = | 13.98605573 | ||
| 4 | 48684 | 2534 | - | 2485 | = | 49 | * | (122 | / | 502) | = | 11.90836651 | ||
| 5 | 48687 | 2563 | - | 2528 | = | 35 | * | (133 | / | 502) | = | 9.27290837 | ||
| 6 | 48689 | 2609 | - | 2552 | = | 57 | * | (128 | / | 502) | = | 14.5338645 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Crescent Elementary | 50 | ||||||||||||
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 | 48694 | 2502 | - | 2436 | = | 66 | * | (105 | / | 488) | = | 14.20081964 | ||
| 4 | 48697 | 2558 | - | 2485 | = | 73 | * | (131 | / | 488) | = | 19.59631141 | ||
| 5 | 48698 | 2569 | - | 2528 | = | 41 | * | (119 | / | 488) | = | 9.99795082 | ||
| 6 | 48701 | 2608 | - | 2552 | = | 56 | * | (133 | / | 488) | = | 15.26229505 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Crescent Elementary | 59 | ||||||||||||
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 | 48900 | 2504 | - | 2436 | = | 68 | * | (108 | / | 474) | = | 15.49367087 | ||
| 4 | 48901 | 2552 | - | 2485 | = | 67 | * | (115 | / | 474) | = | 16.25527421 | ||
| 5 | 48902 | 2587 | - | 2528 | = | 59 | * | (131 | / | 474) | = | 16.30590717 | ||
| 6 | 48903 | 2609 | - | 2552 | = | 57 | * | (120 | / | 474) | = | 14.43037969 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Crescent Elementary | 62 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 36 | 42 | 50 | 59 | 62 | 249.0 | 49.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 82.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 16.8
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 | 13% | 14% | 11% | 14% | 14% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Orange Unified school district | County of Orange
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.
Crescent Elementary math proficiency
Zero+ meets standard.
11% less $meal
12% less $meal
10% less $meal
13% 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.