Ronald E. McNair Elementary (Data source)
Source data for Ronald E. McNair 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 | 1161780 | 2348 | - | 2436 | = | -88 | * | (82 | / | 274) | = | -26.33576634 | ||
| 4 | 1161781 | 2377 | - | 2485 | = | -108 | * | (101 | / | 274) | = | -39.8102189 | ||
| 5 | 1161784 | 2431 | - | 2528 | = | -97 | * | (91 | / | 274) | = | -32.21532844 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ronald E. McNair Elementary | -98 | ||||||||||||
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 | 36144 | 2379 | - | 2436 | = | -57 | * | (81 | / | 266) | = | -17.35714285 | ||
| 4 | 36145 | 2396 | - | 2485 | = | -89 | * | (87 | / | 266) | = | -29.10902254 | ||
| 5 | 36147 | 2448 | - | 2528 | = | -80 | * | (98 | / | 266) | = | -29.47368416 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ronald E. McNair Elementary | -76 | ||||||||||||
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 | 36889 | 2438 | - | 2436 | = | 2 | * | (82 | / | 257) | = | 0.63813229 | ||
| 4 | 36891 | 2425 | - | 2485 | = | -60 | * | (82 | / | 257) | = | -19.14396882 | ||
| 5 | 36893 | 2452 | - | 2528 | = | -76 | * | (93 | / | 257) | = | -27.5019455 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ronald E. McNair Elementary | -46 | ||||||||||||
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 | 36859 | 2399 | - | 2436 | = | -37 | * | (72 | / | 231) | = | -11.53246751 | ||
| 4 | 36861 | 2429 | - | 2485 | = | -56 | * | (86 | / | 231) | = | -20.84848483 | ||
| 5 | 36863 | 2474 | - | 2528 | = | -54 | * | (73 | / | 231) | = | -17.06493506 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ronald E. McNair Elementary | -49 | ||||||||||||
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 | 37049 | 2447 | - | 2436 | = | 11 | * | (50 | / | 219) | = | 2.51141552 | ||
| 4 | 37050 | 2439 | - | 2485 | = | -46 | * | (68 | / | 219) | = | -14.28310502 | ||
| 5 | 37051 | 2491 | - | 2528 | = | -37 | * | (76 | / | 219) | = | -12.84018263 | ||
| 6 | 37052 | 2553 | - | 2552 | = | 1 | * | (25 | / | 219) | = | 0.11415525 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ronald E. McNair Elementary | -24 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -98 | -76 | -46 | -49 | -24 | -293.0 | -58.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 25.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -142.6
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 | 45% | 81% | 75% | 88% | 85% |
| 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.
Ronald E. McNair Elementary math proficiency
Zero+ meets standard.
43% less $meal
75% less $meal
71% less $meal
84% less $meal
82% 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.