McKinley Elementary (Data source)
Source data for McKinley 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 | 1165180 | 2337 | - | 2436 | = | -99 | * | (69 | / | 192) | = | -35.578125 | ||
| 4 | 1165183 | 2397 | - | 2485 | = | -88 | * | (65 | / | 192) | = | -29.79166661 | ||
| 5 | 1165184 | 2385 | - | 2528 | = | -143 | * | (58 | / | 192) | = | -43.19791662 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for McKinley Elementary | -109 | ||||||||||||
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 | 36280 | 2384 | - | 2436 | = | -52 | * | (69 | / | 201) | = | -17.85074626 | ||
| 4 | 36282 | 2419 | - | 2485 | = | -66 | * | (71 | / | 201) | = | -23.31343278 | ||
| 5 | 36283 | 2442 | - | 2528 | = | -86 | * | (61 | / | 201) | = | -26.09950248 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for McKinley Elementary | -67 | ||||||||||||
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 | 37039 | 2391 | - | 2436 | = | -45 | * | (84 | / | 217) | = | -17.41935483 | ||
| 4 | 37042 | 2437 | - | 2485 | = | -48 | * | (68 | / | 217) | = | -15.04147464 | ||
| 5 | 37043 | 2487 | - | 2528 | = | -41 | * | (65 | / | 217) | = | -12.28110597 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for McKinley Elementary | -45 | ||||||||||||
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 | 37009 | 2458 | - | 2436 | = | 22 | * | (55 | / | 218) | = | 5.55045869 | ||
| 4 | 37011 | 2506 | - | 2485 | = | 21 | * | (77 | / | 218) | = | 7.41743119 | ||
| 5 | 37013 | 2474 | - | 2528 | = | -54 | * | (57 | / | 218) | = | -14.11926601 | ||
| 6 | 37015 | 2619 | - | 2552 | = | 67 | * | (29 | / | 218) | = | 8.91284397 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for McKinley Elementary | 8 | ||||||||||||
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 | 37212 | 2466 | - | 2436 | = | 30 | * | (62 | / | 244) | = | 7.6229508 | ||
| 4 | 37213 | 2474 | - | 2485 | = | -11 | * | (56 | / | 244) | = | -2.52459016 | ||
| 5 | 37214 | 2499 | - | 2528 | = | -29 | * | (66 | / | 244) | = | -7.84426229 | ||
| 6 | 37215 | 2497 | - | 2552 | = | -55 | * | (35 | / | 244) | = | -7.88934421 | ||
| 7 | 37216 | 2671 | - | 2567 | = | 104 | * | (25 | / | 244) | = | 10.65573766 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for McKinley Elementary | 0 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -109 | -67 | -45 | 8 | 0 | -213.0 | -42.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 90.75
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -197.25
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 | 73% | 86% | 79% | 81% | 83% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Compton 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.
McKinley Elementary math proficiency
Zero+ meets standard.
68% less $meal
82% less $meal
75% less $meal
79% 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.