Julia C. Lathrop Intermediate (Data source)
Source data for Julia C. Lathrop 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 |
||
| 6 | 1539999 | 2455 | - | 2552 | = | -97 | * | (294 | / | 967) | = | -29.49120992 | ||
| 7 | 1540002 | 2454 | - | 2567 | = | -113 | * | (315 | / | 967) | = | -36.80972073 | ||
| 8 | 1540003 | 2486 | - | 2586 | = | -100 | * | (358 | / | 967) | = | -37.0217166 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Julia C. Lathrop Intermediate | -103 | ||||||||||||
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 | 48248 | 2426 | - | 2552 | = | -126 | * | (307 | / | 922) | = | -41.9544468 | ||
| 7 | 48251 | 2471 | - | 2567 | = | -96 | * | (319 | / | 922) | = | -33.21475046 | ||
| 8 | 48253 | 2469 | - | 2586 | = | -117 | * | (296 | / | 922) | = | -37.56182204 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Julia C. Lathrop Intermediate | -113 | ||||||||||||
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 | 49577 | 2420 | - | 2552 | = | -132 | * | (316 | / | 945) | = | -44.13968249 | ||
| 7 | 49579 | 2449 | - | 2567 | = | -118 | * | (320 | / | 945) | = | -39.95767188 | ||
| 8 | 49581 | 2482 | - | 2586 | = | -104 | * | (309 | / | 945) | = | -34.0063491 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Julia C. Lathrop Intermediate | -118 | ||||||||||||
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 | 49590 | 2433 | - | 2552 | = | -119 | * | (281 | / | 939) | = | -35.61128859 | ||
| 7 | 49592 | 2445 | - | 2567 | = | -122 | * | (342 | / | 939) | = | -44.43450474 | ||
| 8 | 49595 | 2479 | - | 2586 | = | -107 | * | (316 | / | 939) | = | -36.00851965 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Julia C. Lathrop Intermediate | -116 | ||||||||||||
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 | 49789 | 2438 | - | 2552 | = | -114 | * | (241 | / | 897) | = | -30.62876247 | ||
| 7 | 49790 | 2459 | - | 2567 | = | -108 | * | (327 | / | 897) | = | -39.37123735 | ||
| 8 | 49791 | 2452 | - | 2586 | = | -134 | * | (329 | / | 897) | = | -49.14827197 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Julia C. Lathrop Intermediate | -119 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -103 | -113 | -118 | -116 | -119 | -569.0 | -113.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -95.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -131.8
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 | 97% | 99% | 98% | 94% | 94% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Santa Ana Unified school district | County of Orange
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.
Julia C. Lathrop Intermediate math proficiency
Zero+ meets standard.
97% less $meal
98% less $meal
92% less $meal
89% less $meal
88% 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.