Silver Spur Elementary (Data source)
Source data for Silver Spur 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 | 1069676 | 2503 | - | 2436 | = | 67 | * | (97 | / | 295) | = | 22.03050845 | ||
| 4 | 1069679 | 2547 | - | 2485 | = | 62 | * | (100 | / | 295) | = | 21.0169491 | ||
| 5 | 1069680 | 2583 | - | 2528 | = | 55 | * | (98 | / | 295) | = | 18.2711864 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Silver Spur Elementary | 61 | ||||||||||||
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 | 33538 | 2525 | - | 2436 | = | 89 | * | (94 | / | 286) | = | 29.25174819 | ||
| 4 | 33540 | 2540 | - | 2485 | = | 55 | * | (94 | / | 286) | = | 18.07692304 | ||
| 5 | 33542 | 2605 | - | 2528 | = | 77 | * | (98 | / | 286) | = | 26.38461533 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Silver Spur Elementary | 74 | ||||||||||||
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 | 34139 | 2536 | - | 2436 | = | 100 | * | (89 | / | 276) | = | 32.2463768 | ||
| 4 | 34141 | 2548 | - | 2485 | = | 63 | * | (94 | / | 276) | = | 21.45652173 | ||
| 5 | 34143 | 2588 | - | 2528 | = | 60 | * | (93 | / | 276) | = | 20.21739126 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Silver Spur Elementary | 74 | ||||||||||||
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 | 34142 | 2543 | - | 2436 | = | 107 | * | (79 | / | 264) | = | 32.01893937 | ||
| 4 | 34144 | 2542 | - | 2485 | = | 57 | * | (87 | / | 264) | = | 18.78409088 | ||
| 5 | 34146 | 2616 | - | 2528 | = | 88 | * | (98 | / | 264) | = | 32.66666665 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Silver Spur Elementary | 83 | ||||||||||||
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 | 34308 | 2537 | - | 2436 | = | 101 | * | (89 | / | 258) | = | 34.84108524 | ||
| 4 | 34309 | 2559 | - | 2485 | = | 74 | * | (82 | / | 258) | = | 23.51937982 | ||
| 5 | 34310 | 2610 | - | 2528 | = | 82 | * | (87 | / | 258) | = | 27.65116276 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Silver Spur Elementary | 86 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 61 | 74 | 74 | 83 | 86 | 378.0 | 75.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 102.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 48.6
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 | 1% | 2% | 1% | 5% | 6% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palos Verdes Peninsula Unified 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.
Silver Spur Elementary math proficiency
Zero+ meets standard.
1% less $meal
1% less $meal
1% less $meal
5% less $meal
6% 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.