Walnut Grove Intermediate (Data source)
Source data for Walnut Grove 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 | 1138565 | 2514 | - | 2567 | = | -53 | * | (160 | / | 374) | = | -22.67379676 | ||
| 8 | 1138568 | 2533 | - | 2586 | = | -53 | * | (214 | / | 374) | = | -30.32620319 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Walnut Grove Intermediate | -53 | ||||||||||||
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 | 35450 | 2518 | - | 2567 | = | -49 | * | (187 | / | 340) | = | -26.95 | ||
| 8 | 35452 | 2523 | - | 2586 | = | -63 | * | (153 | / | 340) | = | -28.35 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Walnut Grove Intermediate | -55 | ||||||||||||
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 | 36148 | 2520 | - | 2567 | = | -47 | * | (179 | / | 359) | = | -23.43454037 | ||
| 8 | 36149 | 2535 | - | 2586 | = | -51 | * | (180 | / | 359) | = | -25.57103061 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Walnut Grove Intermediate | -49 | ||||||||||||
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 | 36153 | 2502 | - | 2567 | = | -65 | * | (212 | / | 393) | = | -35.0636132 | ||
| 8 | 36155 | 2550 | - | 2586 | = | -36 | * | (181 | / | 393) | = | -16.58015266 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Walnut Grove Intermediate | -52 | ||||||||||||
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 | 36321 | 2507 | - | 2567 | = | -60 | * | (179 | / | 380) | = | -28.26315786 | ||
| 8 | 36322 | 2527 | - | 2586 | = | -59 | * | (201 | / | 380) | = | -31.20789471 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Walnut Grove Intermediate | -59 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -53 | -55 | -49 | -52 | -59 | -268.0 | -53.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -44.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -62.6
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 | 80% | 78% | 78% | 77% | 86% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
West Covina 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.
Walnut Grove Intermediate math proficiency
Zero+ meets standard.
60% less $meal
61% less $meal
61% less $meal
68% less $meal
76% 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 West Covina Unified (3)
| Edgewood Middle | Hollencrest Middle | Walnut Grove Intermediate |