High Tech Middle Chula Vista (Data source)
Source data for High Tech Middle Chula 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 |
||
| 6 | 2346832 | 2492 | - | 2552 | = | -60 | * | (101 | / | 311) | = | -19.48553052 | ||
| 7 | 2346835 | 2521 | - | 2567 | = | -46 | * | (100 | / | 311) | = | -14.79099677 | ||
| 8 | 2346836 | 2502 | - | 2586 | = | -84 | * | (110 | / | 311) | = | -29.71061092 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for High Tech Middle Chula Vista | -64 | ||||||||||||
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 |
||
| 6 | 71725 | 2473 | - | 2552 | = | -79 | * | (100 | / | 303) | = | -26.07260724 | ||
| 7 | 71727 | 2498 | - | 2567 | = | -69 | * | (100 | / | 303) | = | -22.77227721 | ||
| 8 | 71730 | 2530 | - | 2586 | = | -56 | * | (103 | / | 303) | = | -19.03630361 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for High Tech Middle Chula Vista | -68 | ||||||||||||
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 | 73627 | 2486 | - | 2552 | = | -66 | * | (99 | / | 297) | = | -21.99999998 | ||
| 7 | 73628 | 2513 | - | 2567 | = | -54 | * | (99 | / | 297) | = | -17.99999998 | ||
| 8 | 73630 | 2509 | - | 2586 | = | -77 | * | (99 | / | 297) | = | -25.66666664 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for High Tech Middle Chula Vista | -66 | ||||||||||||
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 | 73766 | 2492 | - | 2552 | = | -60 | * | (106 | / | 312) | = | -20.38461534 | ||
| 7 | 73768 | 2497 | - | 2567 | = | -70 | * | (108 | / | 312) | = | -24.23076922 | ||
| 8 | 73770 | 2531 | - | 2586 | = | -55 | * | (98 | / | 312) | = | -17.27564102 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for High Tech Middle Chula Vista | -62 | ||||||||||||
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 | 74231 | 2508 | - | 2552 | = | -44 | * | (112 | / | 326) | = | -15.11656441 | ||
| 7 | 74232 | 2508 | - | 2567 | = | -59 | * | (109 | / | 326) | = | -19.72699385 | ||
| 8 | 74233 | 2534 | - | 2586 | = | -52 | * | (105 | / | 326) | = | -16.74846623 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for High Tech Middle Chula Vista | -52 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -64 | -68 | -66 | -62 | -52 | -312.0 | -62.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average:
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average:
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 | 54% | 50% | 51% | 56% | 52% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
SBC - High Tech High school district County of San Diego
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation, parent education.
NOT what teachers want.
NOT what principals want.
NOT what parents want.