Trona High (Data source)
Source data for Trona 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 | 2064227 | 2510 | - | 2567 | = | -57 | * | (24 | / | 54) | = | -25.33333331 | ||
| 8 | 2064228 | 2460 | - | 2586 | = | -126 | * | (14 | / | 54) | = | -32.66666663 | ||
| 11 | 2064231 | 2525 | - | 2628 | = | -103 | * | (16 | / | 54) | = | -30.51851849 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Trona High | -89 | ||||||||||||
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 | 63429 | 2473 | - | 2567 | = | -94 | * | (18 | / | 58) | = | -29.17241374 | ||
| 8 | 63431 | 2490 | - | 2586 | = | -96 | * | (21 | / | 58) | = | -34.75862064 | ||
| 11 | 63433 | 2527 | - | 2628 | = | -101 | * | (19 | / | 58) | = | -33.08620681 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Trona High | -97 | ||||||||||||
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 | 65222 | 2446 | - | 2567 | = | -121 | * | (20 | / | 53) | = | -45.66037729 | ||
| 8 | 65224 | 2486 | - | 2586 | = | -100 | * | (17 | / | 53) | = | -32.0754716 | ||
| 11 | 65227 | 2512 | - | 2628 | = | -116 | * | (16 | / | 53) | = | -35.01886787 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Trona High | -113 | ||||||||||||
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 | 65309 | 2511 | - | 2567 | = | -56 | * | (23 | / | 53) | = | -24.30188678 | ||
| 8 | 65311 | 2453 | - | 2586 | = | -133 | * | (18 | / | 53) | = | -45.16981125 | ||
| 11 | 65313 | 2487 | - | 2628 | = | -141 | * | (12 | / | 53) | = | -31.92452825 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Trona High | -101 | ||||||||||||
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 | 65693 | 2519 | - | 2567 | = | -48 | * | (25 | / | 61) | = | -19.67213112 | ||
| 8 | 65694 | 2508 | - | 2586 | = | -78 | * | (20 | / | 61) | = | -25.57377046 | ||
| 11 | 65695 | 2523 | - | 2628 | = | -105 | * | (16 | / | 61) | = | -27.54098351 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Trona High | -73 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -89 | -97 | -113 | -101 | -73 | -473.0 | -94.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -52.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -136.6
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 | 76% | 71% | 68% | 79% | 77% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Trona Joint Unified school district County of San Bernardino
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.
Trona High math proficiency
Zero+ meets standard.
70% less $meal
68% less $meal
64% less $meal
74% less $meal
73% 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.
High Schools (Public) schools in Trona Joint Unified (1)
| Trona High |