Ina Arbuckle Elementary (Data source)
Source data for Ina Arbuckle Elementary
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 |
||
| 3 | 1689467 | 2370 | - | 2436 | = | -66 | * | (91 | / | 319) | = | -18.82758616 | ||
| 4 | 1689468 | 2414 | - | 2485 | = | -71 | * | (86 | / | 319) | = | -19.1410658 | ||
| 5 | 1689470 | 2445 | - | 2528 | = | -83 | * | (65 | / | 319) | = | -16.91222567 | ||
| 6 | 1689473 | 2494 | - | 2552 | = | -58 | * | (77 | / | 319) | = | -13.99999998 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ina Arbuckle Elementary | -69 | ||||||||||||
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 |
||
| 3 | 52689 | 2397 | - | 2436 | = | -39 | * | (75 | / | 303) | = | -9.65346533 | ||
| 4 | 52691 | 2419 | - | 2485 | = | -66 | * | (76 | / | 303) | = | -16.55445541 | ||
| 5 | 52693 | 2438 | - | 2528 | = | -90 | * | (83 | / | 303) | = | -24.65346528 | ||
| 6 | 52694 | 2459 | - | 2552 | = | -93 | * | (69 | / | 303) | = | -21.1782178 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ina Arbuckle Elementary | -72 | ||||||||||||
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 |
||
| 3 | 54208 | 2371 | - | 2436 | = | -65 | * | (73 | / | 304) | = | -15.60855257 | ||
| 4 | 54210 | 2419 | - | 2485 | = | -66 | * | (74 | / | 304) | = | -16.06578943 | ||
| 5 | 54211 | 2429 | - | 2528 | = | -99 | * | (75 | / | 304) | = | -24.42434207 | ||
| 6 | 54213 | 2461 | - | 2552 | = | -91 | * | (82 | / | 304) | = | -24.54605262 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ina Arbuckle Elementary | -81 | ||||||||||||
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 |
||
| 3 | 54321 | 2390 | - | 2436 | = | -46 | * | (80 | / | 304) | = | -12.10526312 | ||
| 4 | 54323 | 2405 | - | 2485 | = | -80 | * | (73 | / | 304) | = | -19.21052624 | ||
| 5 | 54325 | 2445 | - | 2528 | = | -83 | * | (75 | / | 304) | = | -20.47697366 | ||
| 6 | 54327 | 2446 | - | 2552 | = | -106 | * | (76 | / | 304) | = | -26.5 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ina Arbuckle Elementary | -78 | ||||||||||||
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 |
||
| 3 | 54562 | 2382 | - | 2436 | = | -54 | * | (73 | / | 298) | = | -13.22818787 | ||
| 4 | 54563 | 2415 | - | 2485 | = | -70 | * | (75 | / | 298) | = | -17.61744964 | ||
| 5 | 54564 | 2442 | - | 2528 | = | -86 | * | (73 | / | 298) | = | -21.06711401 | ||
| 6 | 54565 | 2461 | - | 2552 | = | -91 | * | (77 | / | 298) | = | -23.51342275 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ina Arbuckle Elementary | -75 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -69 | -72 | -81 | -78 | -75 | -375.0 | -75.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -63.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.0
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 | 91% | 94% | 94% | 92% | 90% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Jurupa Unified school district | County of Riverside
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.
Ina Arbuckle Elementary math proficiency
Zero+ meets standard.
83% less $meal
89% less $meal
87% less $meal
87% less $meal
85% 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.