Alpine Vista (Data source)
Source data for Alpine Vista
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 | 3055831 | 2425 | - | 2436 | = | -11 | * | (90 | / | 567) | = | -1.74603174 | ||
| 4 | 3055832 | 2451 | - | 2485 | = | -34 | * | (101 | / | 567) | = | -6.05643737 | ||
| 5 | 3055835 | 2493 | - | 2528 | = | -35 | * | (81 | / | 567) | = | -4.99999997 | ||
| 6 | 3055836 | 2502 | - | 2552 | = | -50 | * | (117 | / | 567) | = | -10.3174603 | ||
| 7 | 3055839 | 2507 | - | 2567 | = | -60 | * | (178 | / | 567) | = | -18.8359788 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Alpine Vista | -42 | ||||||||||||
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 | 94076 | 2407 | - | 2436 | = | -29 | * | (101 | / | 775) | = | -3.77935482 | ||
| 4 | 94077 | 2460 | - | 2485 | = | -25 | * | (100 | / | 775) | = | -3.22580645 | ||
| 5 | 94080 | 2476 | - | 2528 | = | -52 | * | (114 | / | 775) | = | -7.64903225 | ||
| 6 | 94082 | 2502 | - | 2552 | = | -50 | * | (95 | / | 775) | = | -6.12903225 | ||
| 7 | 94083 | 2530 | - | 2567 | = | -37 | * | (187 | / | 775) | = | -8.92774191 | ||
| 8 | 94086 | 2530 | - | 2586 | = | -56 | * | (178 | / | 775) | = | -12.86193546 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Alpine Vista | -43 | ||||||||||||
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 | 96844 | 2428 | - | 2436 | = | -8 | * | (113 | / | 849) | = | -1.0647821 | ||
| 4 | 96845 | 2449 | - | 2485 | = | -36 | * | (119 | / | 849) | = | -5.04593636 | ||
| 5 | 96847 | 2471 | - | 2528 | = | -57 | * | (121 | / | 849) | = | -8.12367488 | ||
| 6 | 96849 | 2468 | - | 2552 | = | -84 | * | (128 | / | 849) | = | -12.6643109 | ||
| 7 | 96852 | 2515 | - | 2567 | = | -52 | * | (180 | / | 849) | = | -11.02473497 | ||
| 8 | 96853 | 2505 | - | 2586 | = | -81 | * | (188 | / | 849) | = | -17.9363957 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Alpine Vista | -56 | ||||||||||||
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 | 97025 | 2407 | - | 2436 | = | -29 | * | (114 | / | 854) | = | -3.87119437 | ||
| 4 | 97026 | 2489 | - | 2485 | = | 4 | * | (122 | / | 854) | = | 0.57142857 | ||
| 5 | 97029 | 2467 | - | 2528 | = | -61 | * | (121 | / | 854) | = | -8.6428571 | ||
| 6 | 97030 | 2476 | - | 2552 | = | -76 | * | (128 | / | 854) | = | -11.39110063 | ||
| 7 | 97033 | 2499 | - | 2567 | = | -68 | * | (187 | / | 854) | = | -14.88992974 | ||
| 8 | 97034 | 2517 | - | 2586 | = | -69 | * | (182 | / | 854) | = | -14.70491803 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Alpine Vista | -53 | ||||||||||||
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 | 97693 | 2418 | - | 2436 | = | -18 | * | (127 | / | 936) | = | -2.44230768 | ||
| 4 | 97694 | 2463 | - | 2485 | = | -22 | * | (129 | / | 936) | = | -3.03205126 | ||
| 5 | 97695 | 2492 | - | 2528 | = | -36 | * | (134 | / | 936) | = | -5.15384615 | ||
| 6 | 97696 | 2486 | - | 2552 | = | -66 | * | (135 | / | 936) | = | -9.51923075 | ||
| 7 | 97697 | 2486 | - | 2567 | = | -81 | * | (216 | / | 936) | = | -18.69230763 | ||
| 8 | 97698 | 2513 | - | 2586 | = | -73 | * | (195 | / | 936) | = | -15.20833331 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Alpine Vista | -54 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -42 | -43 | -56 | -53 | -54 | -248.0 | -49.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -31.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -67.6
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 | 55% | 53% | 51% | 55% | 51% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Tulare City school district | County of Tulare
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.
Alpine Vista math proficiency
Zero+ meets standard.
41% less $meal
39% less $meal
38% less $meal
45% less $meal
41% 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.