Harrington Elementary (Data source)
Source data for Harrington 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 | 3118810 | 2346 | - | 2436 | = | -90 | * | (76 | / | 213) | = | -32.11267599 | ||
| 4 | 3118813 | 2378 | - | 2485 | = | -107 | * | (77 | / | 213) | = | -38.68075113 | ||
| 5 | 3118814 | 2470 | - | 2528 | = | -58 | * | (60 | / | 213) | = | -16.33802812 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Harrington Elementary | -87 | ||||||||||||
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 | 96186 | 2365 | - | 2436 | = | -71 | * | (79 | / | 220) | = | -25.49545454 | ||
| 4 | 96188 | 2407 | - | 2485 | = | -78 | * | (65 | / | 220) | = | -23.04545451 | ||
| 5 | 96190 | 2434 | - | 2528 | = | -94 | * | (76 | / | 220) | = | -32.47272723 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Harrington Elementary | -81 | ||||||||||||
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 | 98973 | 2387 | - | 2436 | = | -49 | * | (94 | / | 284) | = | -16.21830984 | ||
| 4 | 98976 | 2417 | - | 2485 | = | -68 | * | (93 | / | 284) | = | -22.26760558 | ||
| 5 | 98977 | 2420 | - | 2528 | = | -108 | * | (97 | / | 284) | = | -36.88732386 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Harrington Elementary | -75 | ||||||||||||
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 | 99129 | 2366 | - | 2436 | = | -70 | * | (85 | / | 272) | = | -21.875 | ||
| 4 | 99131 | 2428 | - | 2485 | = | -57 | * | (98 | / | 272) | = | -20.53676467 | ||
| 5 | 99133 | 2431 | - | 2528 | = | -97 | * | (89 | / | 272) | = | -31.73897055 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Harrington Elementary | -74 | ||||||||||||
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 | 99795 | 2394 | - | 2436 | = | -42 | * | (94 | / | 273) | = | -14.46153845 | ||
| 4 | 99796 | 2425 | - | 2485 | = | -60 | * | (82 | / | 273) | = | -18.021978 | ||
| 5 | 99797 | 2466 | - | 2528 | = | -62 | * | (97 | / | 273) | = | -22.02930401 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Harrington Elementary | -55 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -87 | -81 | -75 | -74 | -55 | -372.0 | -74.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -38.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -110.4
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 | 90% | 91% | 86% | 92% | 77% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Oxnard school district | County of Ventura
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.
Harrington Elementary math proficiency
Zero+ meets standard.
79% less $meal
81% less $meal
75% less $meal
84% less $meal
70% 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.