Itliong-Vera Cruz (Data source)
Source data for Itliong-Vera Cruz
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 | 68630 | 2522 | - | 2552 | = | -30 | * | (487 | / | 1361) | = | -10.73475384 | ||
| 7 | 68633 | 2543 | - | 2567 | = | -24 | * | (425 | / | 1361) | = | -7.49448934 | ||
| 8 | 68634 | 2560 | - | 2586 | = | -26 | * | (449 | / | 1361) | = | -8.57751651 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Itliong-Vera Cruz | -27 | ||||||||||||
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 | 1834 | 2532 | - | 2552 | = | -20 | * | (423 | / | 1345) | = | -6.28996282 | ||
| 7 | 1835 | 2548 | - | 2567 | = | -19 | * | (482 | / | 1345) | = | -6.80892193 | ||
| 8 | 1838 | 2562 | - | 2586 | = | -24 | * | (440 | / | 1345) | = | -7.8513011 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Itliong-Vera Cruz | -21 | ||||||||||||
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 | 1892 | 2529 | - | 2552 | = | -23 | * | (476 | / | 1402) | = | -7.80884449 | ||
| 7 | 1894 | 2555 | - | 2567 | = | -12 | * | (444 | / | 1402) | = | -3.8002853 | ||
| 8 | 1896 | 2579 | - | 2586 | = | -7 | * | (482 | / | 1402) | = | -2.40656205 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Itliong-Vera Cruz | -14 | ||||||||||||
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 | 1901 | 2530 | - | 2552 | = | -22 | * | (419 | / | 1314) | = | -7.0152207 | ||
| 7 | 1903 | 2546 | - | 2567 | = | -21 | * | (467 | / | 1314) | = | -7.46347031 | ||
| 8 | 1905 | 2577 | - | 2586 | = | -9 | * | (428 | / | 1314) | = | -2.93150685 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Itliong-Vera Cruz | -17 | ||||||||||||
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 | 1925 | 2524 | - | 2552 | = | -28 | * | (434 | / | 1294) | = | -9.39103553 | ||
| 7 | 1926 | 2555 | - | 2567 | = | -12 | * | (416 | / | 1294) | = | -3.85780525 | ||
| 8 | 1927 | 2573 | - | 2586 | = | -13 | * | (444 | / | 1294) | = | -4.46058733 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Itliong-Vera Cruz | -18 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -27 | -21 | -14 | -17 | -18 | -97.0 | -19.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -7.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -31.4
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 | 34% | 36% | 40% | 40% | 39% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
New Haven Unified school district | County of Alameda
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.
Itliong-Vera Cruz math proficiency
Zero+ meets standard.
27% less $meal
27% less $meal
30% less $meal
31% less $meal
30% 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 New Haven Unified (2)
| Cesar Chavez Middle | Itliong-Vera Cruz |