Starlight Elementary (Data source)
Source data for Starlight 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 | 2752824 | 2381 | - | 2436 | = | -55 | * | (99 | / | 316) | = | -17.23101265 | ||
| 4 | 2752827 | 2460 | - | 2485 | = | -25 | * | (105 | / | 316) | = | -8.30696203 | ||
| 5 | 2752828 | 2438 | - | 2528 | = | -90 | * | (112 | / | 316) | = | -31.89873411 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Starlight Elementary | -57 | ||||||||||||
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 | 83739 | 2392 | - | 2436 | = | -44 | * | (127 | / | 339) | = | -16.48377579 | ||
| 4 | 83740 | 2452 | - | 2485 | = | -33 | * | (103 | / | 339) | = | -10.02654866 | ||
| 5 | 83742 | 2460 | - | 2528 | = | -68 | * | (109 | / | 339) | = | -21.86430676 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Starlight Elementary | -48 | ||||||||||||
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 | 86055 | 2382 | - | 2436 | = | -54 | * | (118 | / | 338) | = | -18.852071 | ||
| 4 | 86057 | 2428 | - | 2485 | = | -57 | * | (119 | / | 338) | = | -20.06804729 | ||
| 5 | 86058 | 2434 | - | 2528 | = | -94 | * | (101 | / | 338) | = | -28.08875739 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Starlight Elementary | -67 | ||||||||||||
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 | 86286 | 2410 | - | 2436 | = | -26 | * | (95 | / | 327) | = | -7.5535168 | ||
| 4 | 86289 | 2430 | - | 2485 | = | -55 | * | (115 | / | 327) | = | -19.34250764 | ||
| 5 | 86290 | 2444 | - | 2528 | = | -84 | * | (117 | / | 327) | = | -30.05504586 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Starlight Elementary | -57 | ||||||||||||
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 | 86882 | 2420 | - | 2436 | = | -16 | * | (94 | / | 308) | = | -4.88311688 | ||
| 4 | 86883 | 2438 | - | 2485 | = | -47 | * | (97 | / | 308) | = | -14.80194801 | ||
| 5 | 86884 | 2446 | - | 2528 | = | -82 | * | (117 | / | 308) | = | -31.14935058 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Starlight Elementary | -51 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -57 | -48 | -67 | -57 | -51 | -280.0 | -56.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -35.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -77.0
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 | 92% | 92% | 50% | 87% | 90% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pajaro Valley Unified school district | County of Santa Cruz
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.
Starlight Elementary math proficiency
Zero+ meets standard.
84% less $meal
82% less $meal
50% less $meal
80% less $meal
80% 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.