Sierra Linda Elementary (Data source)
Source data for Sierra Linda 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 | 3121130 | 2363 | - | 2436 | = | -73 | * | (123 | / | 321) | = | -27.97196261 | ||
| 4 | 3121133 | 2411 | - | 2485 | = | -74 | * | (103 | / | 321) | = | -23.74454828 | ||
| 5 | 3121134 | 2421 | - | 2528 | = | -107 | * | (95 | / | 321) | = | -31.66666659 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sierra Linda Elementary | -83 | ||||||||||||
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 | 96270 | 2357 | - | 2436 | = | -79 | * | (106 | / | 341) | = | -24.55718468 | ||
| 4 | 96272 | 2401 | - | 2485 | = | -84 | * | (127 | / | 341) | = | -31.28445743 | ||
| 5 | 96274 | 2414 | - | 2528 | = | -114 | * | (108 | / | 341) | = | -36.10557179 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sierra Linda Elementary | -92 | ||||||||||||
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 | 99058 | 2368 | - | 2436 | = | -68 | * | (117 | / | 334) | = | -23.82035927 | ||
| 4 | 99060 | 2385 | - | 2485 | = | -100 | * | (98 | / | 334) | = | -29.3413173 | ||
| 5 | 99062 | 2415 | - | 2528 | = | -113 | * | (119 | / | 334) | = | -40.26047903 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sierra Linda Elementary | -93 | ||||||||||||
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 | 99213 | 2369 | - | 2436 | = | -67 | * | (117 | / | 321) | = | -24.42056073 | ||
| 4 | 99214 | 2396 | - | 2485 | = | -89 | * | (110 | / | 321) | = | -30.4984423 | ||
| 5 | 99217 | 2401 | - | 2528 | = | -127 | * | (94 | / | 321) | = | -37.19003103 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sierra Linda Elementary | -92 | ||||||||||||
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 | 99879 | 2379 | - | 2436 | = | -57 | * | (106 | / | 314) | = | -19.24203817 | ||
| 4 | 99880 | 2413 | - | 2485 | = | -72 | * | (103 | / | 314) | = | -23.61783434 | ||
| 5 | 99881 | 2420 | - | 2528 | = | -108 | * | (105 | / | 314) | = | -36.11464963 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sierra Linda Elementary | -79 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -83 | -92 | -93 | -92 | -79 | -439.0 | -87.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -69.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -105.8
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 | 86% | 88% | 85% | 86% | 73% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Oxnard school district | County of Ventura
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.
Sierra Linda Elementary math proficiency
Zero+ meets standard.
72% less $meal
76% less $meal
73% less $meal
78% less $meal
68% 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.