Trinidad Union (Data source)
Source data for Trinidad Union
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 | 425016 | 2428 | - | 2436 | = | -8 | * | (17 | / | 106) | = | -1.28301886 | ||
| 4 | 425019 | 2460 | - | 2485 | = | -25 | * | (23 | / | 106) | = | -5.4245283 | ||
| 5 | 425020 | 2461 | - | 2528 | = | -67 | * | (16 | / | 106) | = | -10.11320753 | ||
| 6 | 425023 | 2568 | - | 2552 | = | 16 | * | (20 | / | 106) | = | 3.01886792 | ||
| 7 | 425024 | 2617 | - | 2567 | = | 50 | * | (14 | / | 106) | = | 6.60377355 | ||
| 8 | 425027 | 2627 | - | 2586 | = | 41 | * | (16 | / | 106) | = | 6.18867924 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Trinidad Union | -1 | ||||||||||||
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 | 13327 | 2466 | - | 2436 | = | 30 | * | (23 | / | 118) | = | 5.84745762 | ||
| 4 | 13330 | 2495 | - | 2485 | = | 10 | * | (17 | / | 118) | = | 1.44067796 | ||
| 5 | 13332 | 2443 | - | 2528 | = | -85 | * | (27 | / | 118) | = | -19.44915252 | ||
| 6 | 13334 | 2540 | - | 2552 | = | -12 | * | (19 | / | 118) | = | -1.93220339 | ||
| 7 | 13336 | 2599 | - | 2567 | = | 32 | * | (16 | / | 118) | = | 4.33898304 | ||
| 8 | 13338 | 2616 | - | 2586 | = | 30 | * | (16 | / | 118) | = | 4.0677966 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Trinidad Union | -6 | ||||||||||||
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 | 13660 | 2438 | - | 2436 | = | 2 | * | (17 | / | 128) | = | 0.265625 | ||
| 4 | 13663 | 2484 | - | 2485 | = | -1 | * | (24 | / | 128) | = | -0.1875 | ||
| 5 | 13664 | 2521 | - | 2528 | = | -7 | * | (18 | / | 128) | = | -0.984375 | ||
| 6 | 13667 | 2516 | - | 2552 | = | -36 | * | (27 | / | 128) | = | -7.59375 | ||
| 7 | 13669 | 2547 | - | 2567 | = | -20 | * | (25 | / | 128) | = | -3.90625 | ||
| 8 | 13671 | 2595 | - | 2586 | = | 9 | * | (17 | / | 128) | = | 1.1953125 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Trinidad Union | -11 | ||||||||||||
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 | 13651 | 2413 | - | 2436 | = | -23 | * | (15 | / | 122) | = | -2.82786884 | ||
| 4 | 13652 | 2467 | - | 2485 | = | -18 | * | (16 | / | 122) | = | -2.36065572 | ||
| 5 | 13655 | 2526 | - | 2528 | = | -2 | * | (24 | / | 122) | = | -0.39344262 | ||
| 6 | 13656 | 2516 | - | 2552 | = | -36 | * | (16 | / | 122) | = | -4.72131144 | ||
| 7 | 13659 | 2540 | - | 2567 | = | -27 | * | (28 | / | 122) | = | -6.19672129 | ||
| 8 | 13660 | 2543 | - | 2586 | = | -43 | * | (23 | / | 122) | = | -8.10655737 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Trinidad Union | -25 | ||||||||||||
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 | 13776 | 2446 | - | 2436 | = | 10 | * | (23 | / | 119) | = | 1.9327731 | ||
| 4 | 13777 | 2471 | - | 2485 | = | -14 | * | (15 | / | 119) | = | -1.76470588 | ||
| 5 | 13778 | 2506 | - | 2528 | = | -22 | * | (16 | / | 119) | = | -2.95798318 | ||
| 6 | 13779 | 2519 | - | 2552 | = | -33 | * | (25 | / | 119) | = | -6.93277309 | ||
| 7 | 13780 | 2549 | - | 2567 | = | -18 | * | (17 | / | 119) | = | -2.57142856 | ||
| 8 | 13781 | 2529 | - | 2586 | = | -57 | * | (23 | / | 119) | = | -11.01680667 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Trinidad Union | -23 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -1 | -6 | -11 | -25 | -23 | -66.0 | -13.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 16.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -43.2
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 | 56% | 58% | 56% | 60% | 58% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Trinidad Union Elementary school district | County of Humboldt
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.
Trinidad Union math proficiency
Zero+ meets standard.
47% less $meal
46% less $meal
40% less $meal
49% less $meal
50% 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 in 1 School District (Public) schools in Trinidad Union Elementary (1)
| Trinidad Union |