Lairon College Preparatory Academy (Data source)
Source data for Lairon College Preparatory Academy
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 |
||
| 4 | 2657328 | 2437 | - | 2485 | = | -48 | * | (125 | / | 513) | = | -11.69590642 | ||
| 5 | 2657329 | 2433 | - | 2528 | = | -95 | * | (134 | / | 513) | = | -24.81481472 | ||
| 6 | 2657332 | 2472 | - | 2552 | = | -80 | * | (133 | / | 513) | = | -20.74074072 | ||
| 7 | 2657333 | 2491 | - | 2567 | = | -76 | * | (58 | / | 513) | = | -8.59259253 | ||
| 8 | 2657336 | 2485 | - | 2586 | = | -101 | * | (63 | / | 513) | = | -12.40350872 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Lairon College Preparatory Academy | -78 | ||||||||||||
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 |
||
| 4 | 81005 | 2431 | - | 2485 | = | -54 | * | (95 | / | 447) | = | -11.47651006 | ||
| 5 | 81006 | 2450 | - | 2528 | = | -78 | * | (118 | / | 447) | = | -20.59060396 | ||
| 6 | 81009 | 2474 | - | 2552 | = | -78 | * | (132 | / | 447) | = | -23.03355701 | ||
| 7 | 81010 | 2517 | - | 2567 | = | -50 | * | (50 | / | 447) | = | -5.59284115 | ||
| 8 | 81013 | 2505 | - | 2586 | = | -81 | * | (52 | / | 447) | = | -9.42281878 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Lairon College Preparatory Academy | -70 | ||||||||||||
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 |
||
| 4 | 83238 | 2440 | - | 2485 | = | -45 | * | (105 | / | 393) | = | -12.02290074 | ||
| 5 | 83241 | 2423 | - | 2528 | = | -105 | * | (78 | / | 393) | = | -20.83969461 | ||
| 6 | 83242 | 2470 | - | 2552 | = | -82 | * | (117 | / | 393) | = | -24.41221369 | ||
| 7 | 83245 | 2497 | - | 2567 | = | -70 | * | (48 | / | 393) | = | -8.54961828 | ||
| 8 | 83247 | 2535 | - | 2586 | = | -51 | * | (45 | / | 393) | = | -5.83969462 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Lairon College Preparatory Academy | -72 | ||||||||||||
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 |
||
| 4 | 83466 | 2447 | - | 2485 | = | -38 | * | (100 | / | 364) | = | -10.43956041 | ||
| 5 | 83468 | 2442 | - | 2528 | = | -86 | * | (96 | / | 364) | = | -22.68131862 | ||
| 6 | 83470 | 2444 | - | 2552 | = | -108 | * | (79 | / | 364) | = | -23.43956044 | ||
| 7 | 83472 | 2534 | - | 2567 | = | -33 | * | (47 | / | 364) | = | -4.26098901 | ||
| 8 | 83474 | 2500 | - | 2586 | = | -86 | * | (42 | / | 364) | = | -9.92307689 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Lairon College Preparatory Academy | -71 | ||||||||||||
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 |
||
| 4 | 84082 | 2415 | - | 2485 | = | -70 | * | (82 | / | 369) | = | -15.55555554 | ||
| 5 | 84083 | 2450 | - | 2528 | = | -78 | * | (93 | / | 369) | = | -19.65853656 | ||
| 6 | 84084 | 2440 | - | 2552 | = | -112 | * | (94 | / | 369) | = | -28.53116526 | ||
| 7 | 84085 | 2481 | - | 2567 | = | -86 | * | (52 | / | 369) | = | -12.11924117 | ||
| 8 | 84086 | 2486 | - | 2586 | = | -100 | * | (48 | / | 369) | = | -13.00813 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Lairon College Preparatory Academy | -89 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -78 | -70 | -72 | -71 | -89 | -380.0 | -76.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -55.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -97.0
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 | 96% | 95% | 92% | 86% | 89% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Franklin-McKinley Elementary school district | County of Santa Clara
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.
Lairon College Preparatory Academy math proficiency
Zero+ meets standard.
87% less $meal
86% less $meal
78% less $meal
77% less $meal
78% 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.