Dapplegray Elementary (Data source)
Source data for Dapplegray 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 | 1070452 | 2496 | - | 2436 | = | 60 | * | (89 | / | 300) | = | 17.79999996 | ||
| 4 | 1070453 | 2535 | - | 2485 | = | 50 | * | (110 | / | 300) | = | 18.3333333 | ||
| 5 | 1070456 | 2567 | - | 2528 | = | 39 | * | (101 | / | 300) | = | 13.12999997 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Dapplegray Elementary | 49 | ||||||||||||
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 | 33562 | 2497 | - | 2436 | = | 61 | * | (93 | / | 299) | = | 18.97324413 | ||
| 4 | 33564 | 2532 | - | 2485 | = | 47 | * | (94 | / | 299) | = | 14.77591969 | ||
| 5 | 33565 | 2559 | - | 2528 | = | 31 | * | (112 | / | 299) | = | 11.61204011 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Dapplegray Elementary | 45 | ||||||||||||
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 | 34162 | 2496 | - | 2436 | = | 60 | * | (100 | / | 295) | = | 20.338983 | ||
| 4 | 34165 | 2540 | - | 2485 | = | 55 | * | (97 | / | 295) | = | 18.08474575 | ||
| 5 | 34166 | 2554 | - | 2528 | = | 26 | * | (98 | / | 295) | = | 8.63728811 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Dapplegray Elementary | 47 | ||||||||||||
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 | 34167 | 2481 | - | 2436 | = | 45 | * | (80 | / | 298) | = | 12.08053688 | ||
| 4 | 34169 | 2536 | - | 2485 | = | 51 | * | (110 | / | 298) | = | 18.82550332 | ||
| 5 | 34171 | 2563 | - | 2528 | = | 35 | * | (108 | / | 298) | = | 12.68456375 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Dapplegray Elementary | 44 | ||||||||||||
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 | 34332 | 2484 | - | 2436 | = | 48 | * | (114 | / | 327) | = | 16.73394494 | ||
| 4 | 34333 | 2521 | - | 2485 | = | 36 | * | (92 | / | 327) | = | 10.12844034 | ||
| 5 | 34334 | 2572 | - | 2528 | = | 44 | * | (121 | / | 327) | = | 16.28134556 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Dapplegray Elementary | 43 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 49 | 45 | 47 | 44 | 43 | 228.0 | 45.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 51.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 39.6
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 | 3% | 4% | 5% | 9% | 7% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palos Verdes Peninsula 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.
Dapplegray Elementary math proficiency
Zero+ meets standard.
3% less $meal
4% less $meal
4% less $meal
8% less $meal
6% 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.