Ross (Betsy) Elementary (Data source)
Source data for Ross (Betsy) 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 | 1411307 | 2363 | - | 2436 | = | -73 | * | (131 | / | 528) | = | -18.11174238 | ||
| 4 | 1411310 | 2417 | - | 2485 | = | -68 | * | (140 | / | 528) | = | -18.03030302 | ||
| 5 | 1411311 | 2432 | - | 2528 | = | -96 | * | (138 | / | 528) | = | -25.09090906 | ||
| 6 | 1411314 | 2454 | - | 2552 | = | -98 | * | (119 | / | 528) | = | -22.08712113 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Ross (Betsy) Elementary | -83 | ||||||||||||
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 | 44545 | 2381 | - | 2436 | = | -55 | * | (117 | / | 513) | = | -12.54385963 | ||
| 4 | 44547 | 2418 | - | 2485 | = | -67 | * | (115 | / | 513) | = | -15.01949311 | ||
| 5 | 44549 | 2438 | - | 2528 | = | -90 | * | (140 | / | 513) | = | -24.56140347 | ||
| 6 | 44550 | 2479 | - | 2552 | = | -73 | * | (141 | / | 513) | = | -20.06432747 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Ross (Betsy) Elementary | -72 | ||||||||||||
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 | 45716 | 2395 | - | 2436 | = | -41 | * | (108 | / | 475) | = | -9.32210526 | ||
| 4 | 45718 | 2419 | - | 2485 | = | -66 | * | (125 | / | 475) | = | -17.368421 | ||
| 5 | 45719 | 2435 | - | 2528 | = | -93 | * | (110 | / | 475) | = | -21.53684207 | ||
| 6 | 45722 | 2477 | - | 2552 | = | -75 | * | (132 | / | 475) | = | -20.8421052 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Ross (Betsy) Elementary | -69 | ||||||||||||
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 | 45732 | 2386 | - | 2436 | = | -50 | * | (127 | / | 469) | = | -13.5394456 | ||
| 4 | 45735 | 2430 | - | 2485 | = | -55 | * | (110 | / | 469) | = | -12.89978674 | ||
| 5 | 45736 | 2433 | - | 2528 | = | -95 | * | (120 | / | 469) | = | -24.30703621 | ||
| 6 | 45739 | 2476 | - | 2552 | = | -76 | * | (112 | / | 469) | = | -18.14925372 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Ross (Betsy) Elementary | -69 | ||||||||||||
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 | 45914 | 2393 | - | 2436 | = | -43 | * | (121 | / | 509) | = | -10.2220039 | ||
| 4 | 45915 | 2440 | - | 2485 | = | -45 | * | (130 | / | 509) | = | -11.49312375 | ||
| 5 | 45916 | 2452 | - | 2528 | = | -76 | * | (132 | / | 509) | = | -19.70923375 | ||
| 6 | 45917 | 2471 | - | 2552 | = | -81 | * | (126 | / | 509) | = | -20.05108052 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Ross (Betsy) Elementary | -61 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -83 | -72 | -69 | -69 | -61 | -354.0 | -70.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -49.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -91.8
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% | 84% | 87% | 89% | 86% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Anaheim Elementary school district | County of Orange
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.
Ross (Betsy) Elementary math proficiency
Zero+ meets standard.
78% less $meal
76% less $meal
76% less $meal
79% less $meal
75% 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.