Crafton Elementary (Data source)
Source data for Crafton 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 | 2022638 | 2431 | - | 2436 | = | -5 | * | (115 | / | 333) | = | -1.72672673 | ||
| 4 | 2022641 | 2481 | - | 2485 | = | -4 | * | (119 | / | 333) | = | -1.42942943 | ||
| 5 | 2022642 | 2484 | - | 2528 | = | -44 | * | (99 | / | 333) | = | -13.08108107 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Crafton Elementary | -16 | ||||||||||||
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 | 62197 | 2454 | - | 2436 | = | 18 | * | (94 | / | 334) | = | 5.06586825 | ||
| 4 | 62199 | 2497 | - | 2485 | = | 12 | * | (121 | / | 334) | = | 4.34730539 | ||
| 5 | 62201 | 2499 | - | 2528 | = | -29 | * | (119 | / | 334) | = | -10.33233533 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Crafton Elementary | -1 | ||||||||||||
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 | 63982 | 2422 | - | 2436 | = | -14 | * | (98 | / | 326) | = | -4.20858894 | ||
| 4 | 63984 | 2505 | - | 2485 | = | 20 | * | (104 | / | 326) | = | 6.38036808 | ||
| 5 | 63986 | 2515 | - | 2528 | = | -13 | * | (124 | / | 326) | = | -4.94478527 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Crafton Elementary | -3 | ||||||||||||
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 | 64087 | 2456 | - | 2436 | = | 20 | * | (100 | / | 316) | = | 6.32911392 | ||
| 4 | 64089 | 2486 | - | 2485 | = | 1 | * | (105 | / | 316) | = | 0.33227848 | ||
| 5 | 64091 | 2510 | - | 2528 | = | -18 | * | (111 | / | 316) | = | -6.3227848 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Crafton Elementary | 0 | ||||||||||||
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 | 64455 | 2437 | - | 2436 | = | 1 | * | (98 | / | 313) | = | 0.31309904 | ||
| 4 | 64456 | 2506 | - | 2485 | = | 21 | * | (103 | / | 313) | = | 6.91054312 | ||
| 5 | 64457 | 2466 | - | 2528 | = | -62 | * | (112 | / | 313) | = | -22.18530351 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Crafton Elementary | -15 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -16 | -1 | -3 | 0 | -15 | -35.0 | -7.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 12.25
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -29.75
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 | 58% | 55% | 54% | 57% | 60% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Redlands Unified 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.
Crafton Elementary math proficiency
Zero+ meets standard.
49% less $meal
47% less $meal
45% less $meal
50% 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.