Sierra Vista Junior High (Data source)
Source data for Sierra Vista Junior High
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 |
||
| 7 | 1157776 | 2524 | - | 2567 | = | -43 | * | (588 | / | 1231) | = | -20.53939883 | ||
| 8 | 1157777 | 2572 | - | 2586 | = | -14 | * | (643 | / | 1231) | = | -7.31275385 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sierra Vista Junior High | -28 | ||||||||||||
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 |
||
| 7 | 36011 | 2559 | - | 2567 | = | -8 | * | (564 | / | 1168) | = | -3.8630137 | ||
| 8 | 36014 | 2582 | - | 2586 | = | -4 | * | (604 | / | 1168) | = | -2.06849315 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sierra Vista Junior High | -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 |
||
| 7 | 36727 | 2557 | - | 2567 | = | -10 | * | (516 | / | 1076) | = | -4.79553903 | ||
| 8 | 36729 | 2594 | - | 2586 | = | 8 | * | (560 | / | 1076) | = | 4.16356877 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sierra Vista Junior High | -1 | ||||||||||||
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 |
||
| 7 | 36693 | 2540 | - | 2567 | = | -27 | * | (522 | / | 1031) | = | -13.67022307 | ||
| 8 | 36695 | 2577 | - | 2586 | = | -9 | * | (509 | / | 1031) | = | -4.44325897 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sierra Vista Junior High | -18 | ||||||||||||
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 |
||
| 7 | 36857 | 2541 | - | 2567 | = | -26 | * | (525 | / | 1049) | = | -13.01239274 | ||
| 8 | 36858 | 2553 | - | 2586 | = | -33 | * | (524 | / | 1049) | = | -16.48427072 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sierra Vista Junior High | -29 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -28 | -6 | -1 | -18 | -29 | -82.0 | -16.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 19.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -52.4
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% | 35% | 24% | 45% | 52% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
William S. Hart Union High school district | County of Los Angeles
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.
Sierra Vista Junior High math proficiency
Zero+ meets standard.
30% less $meal
30% less $meal
22% less $meal
40% less $meal
44% 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 William S. Hart Union High (4)
| Arroyo Seco Junior High | La Mesa Junior High | Placerita Junior High |
| Sierra Vista Junior High |