Rancho-Starbuck Intermediate (Data source)
Source data for Rancho-Starbuck Intermediate
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 | 1024098 | 2561 | - | 2567 | = | -6 | * | (371 | / | 732) | = | -3.04098361 | ||
| 8 | 1024099 | 2587 | - | 2586 | = | 1 | * | (361 | / | 732) | = | 0.4931694 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rancho-Starbuck Intermediate | -3 | ||||||||||||
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 | 32149 | 2551 | - | 2567 | = | -16 | * | (421 | / | 805) | = | -8.36770186 | ||
| 8 | 32150 | 2581 | - | 2586 | = | -5 | * | (384 | / | 805) | = | -2.38509317 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rancho-Starbuck Intermediate | -11 | ||||||||||||
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 | 32684 | 2573 | - | 2567 | = | 6 | * | (356 | / | 766) | = | 2.78851175 | ||
| 8 | 32686 | 2587 | - | 2586 | = | 1 | * | (410 | / | 766) | = | 0.53524804 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rancho-Starbuck Intermediate | 3 | ||||||||||||
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 | 32703 | 2561 | - | 2567 | = | -6 | * | (380 | / | 739) | = | -3.08525033 | ||
| 8 | 32705 | 2600 | - | 2586 | = | 14 | * | (359 | / | 739) | = | 6.80108254 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rancho-Starbuck Intermediate | 4 | ||||||||||||
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 | 32881 | 2578 | - | 2567 | = | 11 | * | (370 | / | 735) | = | 5.53741496 | ||
| 8 | 32882 | 2580 | - | 2586 | = | -6 | * | (365 | / | 735) | = | -2.97959183 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rancho-Starbuck Intermediate | 3 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -3 | -11 | 3 | 4 | 3 | -4.0 | -0.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 17.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -18.8
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 | 32% | 33% | 33% | 37% | 37% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lowell Joint 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.
Rancho-Starbuck Intermediate math proficiency
Zero+ meets standard.
25% less $meal
25% less $meal
24% 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 Lowell Joint (1)
| Rancho-Starbuck Intermediate |