Alder Creek Middle (Data source)
Source data for Alder Creek Middle
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 |
||
| 6 | 1617008 | 2524 | - | 2552 | = | -28 | * | (176 | / | 490) | = | -10.05714284 | ||
| 7 | 1617011 | 2542 | - | 2567 | = | -25 | * | (149 | / | 490) | = | -7.6020408 | ||
| 8 | 1617012 | 2561 | - | 2586 | = | -25 | * | (165 | / | 490) | = | -8.41836733 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Alder Creek Middle | -26 | ||||||||||||
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 |
||
| 5 | 50560 | 0 | - | 2528 | = | * | (1 | / | 486) | = | ||||
| 6 | 50563 | 2555 | - | 2552 | = | 3 | * | (150 | / | 486) | = | 0.92592593 | ||
| 7 | 50565 | 2552 | - | 2567 | = | -15 | * | (185 | / | 486) | = | -5.70987654 | ||
| 8 | 50567 | 2597 | - | 2586 | = | 11 | * | (150 | / | 486) | = | 3.39506173 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Alder Creek Middle | -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 |
||
| 6 | 52005 | 2564 | - | 2552 | = | 12 | * | (172 | / | 524) | = | 3.93893129 | ||
| 7 | 52006 | 2587 | - | 2567 | = | 20 | * | (168 | / | 524) | = | 6.41221374 | ||
| 8 | 52009 | 2605 | - | 2586 | = | 19 | * | (184 | / | 524) | = | 6.67175572 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Alder Creek Middle | 17 | ||||||||||||
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 |
||
| 6 | 52048 | 2533 | - | 2552 | = | -19 | * | (167 | / | 507) | = | -6.25838264 | ||
| 7 | 52051 | 2583 | - | 2567 | = | 16 | * | (177 | / | 507) | = | 5.58579882 | ||
| 8 | 52052 | 2621 | - | 2586 | = | 35 | * | (163 | / | 507) | = | 11.25246546 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Alder Creek Middle | 11 | ||||||||||||
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 |
||
| 6 | 52235 | 2544 | - | 2552 | = | -8 | * | (175 | / | 527) | = | -2.65654649 | ||
| 7 | 52236 | 2553 | - | 2567 | = | -14 | * | (180 | / | 527) | = | -4.78178368 | ||
| 8 | 52237 | 2616 | - | 2586 | = | 30 | * | (172 | / | 527) | = | 9.79127133 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Alder Creek Middle | 2 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -26 | -1 | 17 | 11 | 2 | 3.0 | 0.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 48.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -47.4
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 | 38% | 34% | 32% | 39% | 37% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Tahoe-Truckee Unified school district | County of Placer
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.
Alder Creek Middle math proficiency
Zero+ meets standard.
32% less $meal
27% less $meal
27% less $meal
32% less $meal
33% 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.
Intermediate/Middle Schools (Public) schools in Tahoe-Truckee Unified (2)
| Alder Creek Middle | North Tahoe |