Laurel Elementary (Data source)
Source data for Laurel 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 | 686225 | 2421 | - | 2436 | = | -15 | * | (127 | / | 390) | = | -4.88461538 | ||
| 4 | 686226 | 2443 | - | 2485 | = | -42 | * | (140 | / | 390) | = | -15.07692304 | ||
| 5 | 686229 | 2454 | - | 2528 | = | -74 | * | (123 | / | 390) | = | -23.33846151 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Laurel Elementary | -43 | ||||||||||||
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 | 21687 | 2420 | - | 2436 | = | -16 | * | (100 | / | 364) | = | -4.39560438 | ||
| 4 | 21689 | 2449 | - | 2485 | = | -36 | * | (124 | / | 364) | = | -12.26373624 | ||
| 5 | 21690 | 2463 | - | 2528 | = | -65 | * | (140 | / | 364) | = | -24.99999996 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Laurel 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 | 22108 | 2418 | - | 2436 | = | -18 | * | (126 | / | 341) | = | -6.65102639 | ||
| 4 | 22109 | 2447 | - | 2485 | = | -38 | * | (96 | / | 341) | = | -10.69794719 | ||
| 5 | 22111 | 2463 | - | 2528 | = | -65 | * | (119 | / | 341) | = | -22.68328446 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Laurel Elementary | -40 | ||||||||||||
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 | 22094 | 2438 | - | 2436 | = | 2 | * | (95 | / | 319) | = | 0.59561128 | ||
| 4 | 22096 | 2466 | - | 2485 | = | -19 | * | (130 | / | 319) | = | -7.74294669 | ||
| 5 | 22098 | 2483 | - | 2528 | = | -45 | * | (94 | / | 319) | = | -13.26018807 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Laurel Elementary | -20 | ||||||||||||
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 | 22272 | 2431 | - | 2436 | = | -5 | * | (105 | / | 319) | = | -1.64576803 | ||
| 4 | 22273 | 2466 | - | 2485 | = | -19 | * | (85 | / | 319) | = | -5.06269592 | ||
| 5 | 22274 | 2497 | - | 2528 | = | -31 | * | (129 | / | 319) | = | -12.53605013 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Laurel Elementary | -19 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -43 | -42 | -40 | -20 | -19 | -164.0 | -32.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 3.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -68.8
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 | 72% | 70% | 68% | 72% | 73% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
East Whittier City Elementary 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.
Laurel Elementary math proficiency
Zero+ meets standard.
57% less $meal
59% less $meal
54% less $meal
62% less $meal
59% 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.