Kennedy (John F.) Elementary (Data source)
Source data for Kennedy (John F.) 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 | 606413 | 2416 | - | 2436 | = | -20 | * | (63 | / | 258) | = | -4.88372092 | ||
| 4 | 606414 | 2459 | - | 2485 | = | -26 | * | (67 | / | 258) | = | -6.75193797 | ||
| 5 | 606417 | 2499 | - | 2528 | = | -29 | * | (67 | / | 258) | = | -7.53100774 | ||
| 6 | 606418 | 2542 | - | 2552 | = | -10 | * | (61 | / | 258) | = | -2.36434108 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Kennedy (John F.) Elementary | -22 | ||||||||||||
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 | 19445 | 2442 | - | 2436 | = | 6 | * | (78 | / | 267) | = | 1.75280899 | ||
| 4 | 19447 | 2470 | - | 2485 | = | -15 | * | (65 | / | 267) | = | -3.65168538 | ||
| 5 | 19449 | 2514 | - | 2528 | = | -14 | * | (60 | / | 267) | = | -3.14606741 | ||
| 6 | 19451 | 2573 | - | 2552 | = | 21 | * | (64 | / | 267) | = | 5.03370785 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Kennedy (John F.) Elementary | 0 | ||||||||||||
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 | 19740 | 2436 | - | 2436 | = | 0 | * | (54 | / | 247) | = | 0.0 | ||
| 4 | 19742 | 2488 | - | 2485 | = | 3 | * | (72 | / | 247) | = | 0.87449393 | ||
| 5 | 19743 | 2470 | - | 2528 | = | -58 | * | (57 | / | 247) | = | -13.38461534 | ||
| 6 | 19746 | 2540 | - | 2552 | = | -12 | * | (64 | / | 247) | = | -3.10931173 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Kennedy (John F.) Elementary | -16 | ||||||||||||
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 | 19738 | 2471 | - | 2436 | = | 35 | * | (52 | / | 225) | = | 8.08888889 | ||
| 4 | 19741 | 2466 | - | 2485 | = | -19 | * | (48 | / | 225) | = | -4.05333333 | ||
| 5 | 19742 | 2479 | - | 2528 | = | -49 | * | (63 | / | 225) | = | -13.72 | ||
| 6 | 19745 | 2500 | - | 2552 | = | -52 | * | (62 | / | 225) | = | -14.32888886 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Kennedy (John F.) Elementary | -24 | ||||||||||||
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 | 19923 | 2477 | - | 2436 | = | 41 | * | (71 | / | 239) | = | 12.17991629 | ||
| 4 | 19924 | 2486 | - | 2485 | = | 1 | * | (57 | / | 239) | = | 0.23849372 | ||
| 5 | 19925 | 2480 | - | 2528 | = | -48 | * | (47 | / | 239) | = | -9.43933051 | ||
| 6 | 19926 | 2541 | - | 2552 | = | -11 | * | (64 | / | 239) | = | -2.94560669 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Kennedy (John F.) Elementary | 0 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -22 | 0 | -16 | -24 | 0 | -62.0 | -12.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -8.666666666666666667
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -32.666666666666666667
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 | 50% | 49% | 50% | 55% | 54% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
ABC 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.
Kennedy (John F.) Elementary math proficiency
Zero+ meets standard.
36% less $meal
36% less $meal
38% 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.