H. Clarke Powers Elementary (Data source)
Source data for H. Clarke Powers 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 | 1604547 | 2448 | - | 2436 | = | 12 | * | (56 | / | 331) | = | 2.03021148 | ||
| 4 | 1604550 | 2482 | - | 2485 | = | -3 | * | (50 | / | 331) | = | -0.4531722 | ||
| 5 | 1604551 | 2492 | - | 2528 | = | -36 | * | (55 | / | 331) | = | -5.98187308 | ||
| 6 | 1604554 | 2542 | - | 2552 | = | -10 | * | (53 | / | 331) | = | -1.60120845 | ||
| 7 | 1604555 | 2588 | - | 2567 | = | 21 | * | (62 | / | 331) | = | 3.93353474 | ||
| 8 | 1604558 | 2593 | - | 2586 | = | 7 | * | (55 | / | 331) | = | 1.16314199 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for H. Clarke Powers Elementary | -1 | ||||||||||||
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 | 50193 | 2452 | - | 2436 | = | 16 | * | (54 | / | 344) | = | 2.5116279 | ||
| 4 | 50195 | 2485 | - | 2485 | = | 0 | * | (62 | / | 344) | = | 0.0 | ||
| 5 | 50196 | 2574 | - | 2528 | = | 46 | * | (54 | / | 344) | = | 7.22093022 | ||
| 6 | 50198 | 2557 | - | 2552 | = | 5 | * | (59 | / | 344) | = | 0.85755814 | ||
| 7 | 50201 | 2592 | - | 2567 | = | 25 | * | (53 | / | 344) | = | 3.85174418 | ||
| 8 | 50203 | 2619 | - | 2586 | = | 33 | * | (62 | / | 344) | = | 5.94767441 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for H. Clarke Powers Elementary | 20 | ||||||||||||
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 | 51615 | 2449 | - | 2436 | = | 13 | * | (53 | / | 347) | = | 1.98559078 | ||
| 4 | 51616 | 2494 | - | 2485 | = | 9 | * | (58 | / | 347) | = | 1.50432277 | ||
| 5 | 51618 | 2524 | - | 2528 | = | -4 | * | (63 | / | 347) | = | -0.72622478 | ||
| 6 | 51620 | 2604 | - | 2552 | = | 52 | * | (56 | / | 347) | = | 8.39193082 | ||
| 7 | 51622 | 2593 | - | 2567 | = | 26 | * | (62 | / | 347) | = | 4.64553313 | ||
| 8 | 51625 | 2622 | - | 2586 | = | 36 | * | (55 | / | 347) | = | 5.70605184 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for H. Clarke Powers Elementary | 22 | ||||||||||||
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 | 51644 | 2469 | - | 2436 | = | 33 | * | (53 | / | 359) | = | 4.87186626 | ||
| 4 | 51647 | 2498 | - | 2485 | = | 13 | * | (54 | / | 359) | = | 1.95543175 | ||
| 5 | 51648 | 2526 | - | 2528 | = | -2 | * | (62 | / | 359) | = | -0.3454039 | ||
| 6 | 51651 | 2551 | - | 2552 | = | -1 | * | (68 | / | 359) | = | -0.18941504 | ||
| 7 | 51652 | 2615 | - | 2567 | = | 48 | * | (62 | / | 359) | = | 8.28969355 | ||
| 8 | 51655 | 2600 | - | 2586 | = | 14 | * | (60 | / | 359) | = | 2.33983287 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for H. Clarke Powers Elementary | 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 |
||
| 3 | 51842 | 2463 | - | 2436 | = | 27 | * | (53 | / | 355) | = | 4.0309859 | ||
| 4 | 51843 | 2518 | - | 2485 | = | 33 | * | (56 | / | 355) | = | 5.20563377 | ||
| 5 | 51844 | 2532 | - | 2528 | = | 4 | * | (54 | / | 355) | = | 0.6084507 | ||
| 6 | 51845 | 2570 | - | 2552 | = | 18 | * | (61 | / | 355) | = | 3.09295773 | ||
| 7 | 51846 | 2600 | - | 2567 | = | 33 | * | (67 | / | 355) | = | 6.228169 | ||
| 8 | 51847 | 2633 | - | 2586 | = | 47 | * | (64 | / | 355) | = | 8.47323943 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for H. Clarke Powers Elementary | 28 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -1 | 20 | 22 | 17 | 28 | 86.0 | 17.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 47.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -12.8
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 | 21% | 23% | 21% | 25% | 19% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Loomis Union Elementary school district | County of Placer
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.
H. Clarke Powers Elementary math proficiency
Zero+ meets standard.
15% less $meal
16% less $meal
12% less $meal
21% less $meal
15% 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.
Elementary School (Public) schools in Loomis Union Elementary (6)
| Franklin Elementary | H. Clarke Powers Elementary | Loomis Elementary |
| Ophir STEAM Academy | Penryn Elementary | Placer Elementary |