William Anderson Elementary (Data source)
Source data for William Anderson 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 | 751355 | 2408 | - | 2436 | = | -28 | * | (148 | / | 448) | = | -9.24999998 | ||
| 4 | 751358 | 2454 | - | 2485 | = | -31 | * | (141 | / | 448) | = | -9.7566964 | ||
| 5 | 751359 | 2463 | - | 2528 | = | -65 | * | (159 | / | 448) | = | -23.06919641 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for William Anderson Elementary | -42 | ||||||||||||
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 | 23617 | 2436 | - | 2436 | = | 0 | * | (138 | / | 425) | = | 0.0 | ||
| 4 | 23619 | 2479 | - | 2485 | = | -6 | * | (143 | / | 425) | = | -2.01882353 | ||
| 5 | 23621 | 2474 | - | 2528 | = | -54 | * | (144 | / | 425) | = | -18.29647057 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for William Anderson Elementary | -20 | ||||||||||||
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 | 24096 | 2440 | - | 2436 | = | 4 | * | (107 | / | 385) | = | 1.11168831 | ||
| 4 | 24098 | 2476 | - | 2485 | = | -9 | * | (133 | / | 385) | = | -3.10909091 | ||
| 5 | 24100 | 2480 | - | 2528 | = | -48 | * | (145 | / | 385) | = | -18.07792205 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for William Anderson Elementary | -20 | ||||||||||||
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 | 24116 | 2448 | - | 2436 | = | 12 | * | (124 | / | 376) | = | 3.95744681 | ||
| 4 | 24119 | 2470 | - | 2485 | = | -15 | * | (115 | / | 376) | = | -4.58776595 | ||
| 5 | 24121 | 2478 | - | 2528 | = | -50 | * | (137 | / | 376) | = | -18.2180851 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for William Anderson Elementary | -19 | ||||||||||||
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 | 24294 | 2471 | - | 2436 | = | 35 | * | (98 | / | 344) | = | 9.9709302 | ||
| 4 | 24295 | 2469 | - | 2485 | = | -16 | * | (127 | / | 344) | = | -5.90697674 | ||
| 5 | 24296 | 2467 | - | 2528 | = | -61 | * | (119 | / | 344) | = | -21.10174415 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for William Anderson Elementary | -17 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -42 | -20 | -20 | -19 | -17 | -118.0 | -23.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 6.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -53.6
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 | 88% | 83% | 88% | 88% | 85% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Lawndale Elementary 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.
William Anderson Elementary math proficiency
Zero+ meets standard.
77% less $meal
71% less $meal
72% less $meal
78% less $meal
76% 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.
Elementary School (Public) schools in Lawndale Elementary (6)
| Billy Mitchell Elementary | F. D. Roosevelt Elementary | Lucille J. Smith Elementary |
| Mark Twain Elementary | William Anderson Elementary | William Green Elementary |