Colonial Acres Elementary (Data source)
Source data for Colonial Acres 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 | 111414 | 2365 | - | 2436 | = | -71 | * | (108 | / | 325) | = | -23.59384613 | ||
| 4 | 111417 | 2411 | - | 2485 | = | -74 | * | (112 | / | 325) | = | -25.50153842 | ||
| 5 | 111418 | 2434 | - | 2528 | = | -94 | * | (105 | / | 325) | = | -30.36923076 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Colonial Acres Elementary | -79 | ||||||||||||
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 | 3111 | 2389 | - | 2436 | = | -47 | * | (102 | / | 307) | = | -15.61563518 | ||
| 4 | 3113 | 2416 | - | 2485 | = | -69 | * | (102 | / | 307) | = | -22.92508143 | ||
| 5 | 3116 | 2429 | - | 2528 | = | -99 | * | (103 | / | 307) | = | -33.21498362 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Colonial Acres Elementary | -72 | ||||||||||||
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 | 3223 | 2390 | - | 2436 | = | -46 | * | (99 | / | 295) | = | -15.43728812 | ||
| 4 | 3226 | 2403 | - | 2485 | = | -82 | * | (97 | / | 295) | = | -26.96271184 | ||
| 5 | 3228 | 2424 | - | 2528 | = | -104 | * | (99 | / | 295) | = | -34.90169488 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Colonial Acres Elementary | -77 | ||||||||||||
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 | 3220 | 2386 | - | 2436 | = | -50 | * | (102 | / | 287) | = | -17.7700348 | ||
| 4 | 3222 | 2405 | - | 2485 | = | -80 | * | (104 | / | 287) | = | -28.98954696 | ||
| 5 | 3224 | 2412 | - | 2528 | = | -116 | * | (81 | / | 287) | = | -32.73867594 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Colonial Acres Elementary | -79 | ||||||||||||
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 | 3249 | 2397 | - | 2436 | = | -39 | * | (88 | / | 266) | = | -12.90225561 | ||
| 4 | 3250 | 2413 | - | 2485 | = | -72 | * | (96 | / | 266) | = | -25.98496236 | ||
| 5 | 3251 | 2414 | - | 2528 | = | -114 | * | (82 | / | 266) | = | -35.14285706 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Colonial Acres Elementary | -74 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -79 | -72 | -77 | -79 | -74 | -381.0 | -76.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -67.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -85.2
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 | 81% | 85% | 83% | 82% | 79% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Lorenzo Unified school district | County of Alameda
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.
Colonial Acres Elementary math proficiency
Zero+ meets standard.
73% less $meal
75% less $meal
70% less $meal
76% less $meal
71% 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.
Elementary School (Public) schools in San Lorenzo Unified (9)
| Bay Elementary | Colonial Acres Elementary | Corvallis Elementary |
| Dayton Elementary | Del Rey Elementary | Grant Elementary |
| Hesperian Elementary | Hillside Elementary | Lorenzo Manor Elementary |