McKinley (Data source)
Source data for McKinley
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 | 1086276 | 2395 | - | 2436 | = | -41 | * | (101 | / | 655) | = | -6.32213739 | ||
| 4 | 1086279 | 2439 | - | 2485 | = | -46 | * | (96 | / | 655) | = | -6.74198471 | ||
| 5 | 1086280 | 2487 | - | 2528 | = | -41 | * | (125 | / | 655) | = | -7.82442745 | ||
| 6 | 1086283 | 2478 | - | 2552 | = | -74 | * | (114 | / | 655) | = | -12.87938927 | ||
| 7 | 1086284 | 2523 | - | 2567 | = | -44 | * | (102 | / | 655) | = | -6.85190836 | ||
| 8 | 1086287 | 2516 | - | 2586 | = | -70 | * | (117 | / | 655) | = | -12.50381678 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for McKinley | -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 |
||
| 3 | 34040 | 2416 | - | 2436 | = | -20 | * | (108 | / | 624) | = | -3.46153846 | ||
| 4 | 34041 | 2424 | - | 2485 | = | -61 | * | (100 | / | 624) | = | -9.77564101 | ||
| 5 | 34043 | 2465 | - | 2528 | = | -63 | * | (101 | / | 624) | = | -10.19711536 | ||
| 6 | 34046 | 2500 | - | 2552 | = | -52 | * | (112 | / | 624) | = | -9.33333331 | ||
| 7 | 34048 | 2494 | - | 2567 | = | -73 | * | (112 | / | 624) | = | -13.10256407 | ||
| 8 | 34050 | 2530 | - | 2586 | = | -56 | * | (91 | / | 624) | = | -8.16666665 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for McKinley | -54 | ||||||||||||
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 | 34635 | 2421 | - | 2436 | = | -15 | * | (106 | / | 683) | = | -2.32796486 | ||
| 4 | 34637 | 2465 | - | 2485 | = | -20 | * | (119 | / | 683) | = | -3.48462664 | ||
| 5 | 34639 | 2472 | - | 2528 | = | -56 | * | (105 | / | 683) | = | -8.60907757 | ||
| 6 | 34642 | 2492 | - | 2552 | = | -60 | * | (122 | / | 683) | = | -10.71742308 | ||
| 7 | 34644 | 2527 | - | 2567 | = | -40 | * | (118 | / | 683) | = | -6.91068812 | ||
| 8 | 34645 | 2483 | - | 2586 | = | -103 | * | (113 | / | 683) | = | -17.04099558 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for McKinley | -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 |
||
| 3 | 34638 | 2404 | - | 2436 | = | -32 | * | (106 | / | 715) | = | -4.74405594 | ||
| 4 | 34640 | 2461 | - | 2485 | = | -24 | * | (113 | / | 715) | = | -3.79300699 | ||
| 5 | 34642 | 2487 | - | 2528 | = | -41 | * | (114 | / | 715) | = | -6.53706292 | ||
| 6 | 34644 | 2464 | - | 2552 | = | -88 | * | (140 | / | 715) | = | -17.23076916 | ||
| 7 | 34646 | 2496 | - | 2567 | = | -71 | * | (127 | / | 715) | = | -12.61118877 | ||
| 8 | 34648 | 2514 | - | 2586 | = | -72 | * | (115 | / | 715) | = | -11.58041952 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for McKinley | -56 | ||||||||||||
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 | 34813 | 2415 | - | 2436 | = | -21 | * | (99 | / | 682) | = | -3.04838709 | ||
| 4 | 34814 | 2472 | - | 2485 | = | -13 | * | (95 | / | 682) | = | -1.81085043 | ||
| 5 | 34815 | 2477 | - | 2528 | = | -51 | * | (113 | / | 682) | = | -8.4501466 | ||
| 6 | 34816 | 2490 | - | 2552 | = | -62 | * | (133 | / | 682) | = | -12.09090904 | ||
| 7 | 34817 | 2488 | - | 2567 | = | -79 | * | (120 | / | 682) | = | -13.90029324 | ||
| 8 | 34818 | 2512 | - | 2586 | = | -74 | * | (122 | / | 682) | = | -13.23753662 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for McKinley | -53 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -53 | -54 | -49 | -56 | -53 | -265.0 | -53.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -59.0
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 | 67% | 65% | 62% | 64% | 62% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pasadena 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 math proficiency
Zero+ meets standard.
55% less $meal
54% less $meal
53% less $meal
58% less $meal
55% 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.