David W. Long Elementary (Data source)
Source data for David W. Long 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 | 1980673 | 2461 | - | 2436 | = | 25 | * | (127 | / | 408) | = | 7.78186273 | ||
| 4 | 1980674 | 2486 | - | 2485 | = | 1 | * | (140 | / | 408) | = | 0.34313725 | ||
| 5 | 1980677 | 2515 | - | 2528 | = | -13 | * | (141 | / | 408) | = | -4.49264706 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for David W. Long Elementary | 4 | ||||||||||||
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 | 60938 | 2463 | - | 2436 | = | 27 | * | (128 | / | 403) | = | 8.57568238 | ||
| 4 | 60940 | 2493 | - | 2485 | = | 8 | * | (134 | / | 403) | = | 2.66004962 | ||
| 5 | 60942 | 2530 | - | 2528 | = | 2 | * | (141 | / | 403) | = | 0.69975186 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for David W. Long Elementary | 12 | ||||||||||||
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 | 62701 | 2463 | - | 2436 | = | 27 | * | (148 | / | 404) | = | 9.89108909 | ||
| 4 | 62703 | 2485 | - | 2485 | = | 0 | * | (127 | / | 404) | = | 0.0 | ||
| 5 | 62705 | 2533 | - | 2528 | = | 5 | * | (129 | / | 404) | = | 1.59653465 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for David W. Long Elementary | 11 | ||||||||||||
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 | 62779 | 2478 | - | 2436 | = | 42 | * | (129 | / | 407) | = | 13.31203927 | ||
| 4 | 62781 | 2496 | - | 2485 | = | 11 | * | (148 | / | 407) | = | 3.99999999 | ||
| 5 | 62783 | 2533 | - | 2528 | = | 5 | * | (130 | / | 407) | = | 1.5970516 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for David W. Long 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 | 63049 | 2469 | - | 2436 | = | 33 | * | (139 | / | 417) | = | 10.99999999 | ||
| 4 | 63050 | 2510 | - | 2485 | = | 25 | * | (133 | / | 417) | = | 7.9736211 | ||
| 5 | 63051 | 2541 | - | 2528 | = | 13 | * | (145 | / | 417) | = | 4.52038369 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for David W. Long Elementary | 23 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 4 | 12 | 11 | 19 | 23 | 69.0 | 13.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 34.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -7.2
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 | 27% | 26% | 26% | 29% | 30% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Etiwanda Elementary school district | County of San Bernardino
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.
David W. Long Elementary math proficiency
Zero+ meets standard.
21% less $meal
20% less $meal
21% less $meal
24% less $meal
25% 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.