Tracy (Wilbur) High (Continuation) (Data source)
Source data for Tracy (Wilbur) High (Continuation)
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 |
||
| 11 | 604057 | 2443 | - | 2628 | = | -185 | * | (149 | / | 149) | = | -185.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Tracy (Wilbur) High (Continuation) | -185 | ||||||||||||
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 |
||
| 11 | 19368 | 2444 | - | 2628 | = | -184 | * | (160 | / | 160) | = | -184.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Tracy (Wilbur) High (Continuation) | -184 | ||||||||||||
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 |
||
| 11 | 19664 | 2463 | - | 2628 | = | -165 | * | (123 | / | 123) | = | -165.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Tracy (Wilbur) High (Continuation) | -165 | ||||||||||||
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 |
||
| 11 | 19660 | 2465 | - | 2628 | = | -163 | * | (100 | / | 100) | = | -163.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Tracy (Wilbur) High (Continuation) | -163 | ||||||||||||
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 |
||
| 11 | 19840 | 2478 | - | 2628 | = | -150 | * | (129 | / | 129) | = | -150.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Tracy (Wilbur) High (Continuation) | -150 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -185 | -184 | -165 | -163 | -150 | -847.0 | -169.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -127.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -211.4
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 | 72% | 73% | 64% | 65% | 67% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
ABC Unified 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.
Tracy (Wilbur) High (Continuation) math proficiency
Zero+ meets standard.
64% less $meal
66% less $meal
59% less $meal
61% less $meal
62% 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.
Continuation High Schools schools in ABC Unified (1)
| Tracy (Wilbur) High (Continuation) |