Barrel Springs Elementary (Data source)
Source data for Barrel Springs 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 | 1063244 | 2403 | - | 2436 | = | -33 | * | (114 | / | 469) | = | -8.02132195 | ||
| 4 | 1063247 | 2421 | - | 2485 | = | -64 | * | (116 | / | 469) | = | -15.82942426 | ||
| 5 | 1063248 | 2480 | - | 2528 | = | -48 | * | (123 | / | 469) | = | -12.5884861 | ||
| 6 | 1063251 | 2508 | - | 2552 | = | -44 | * | (116 | / | 469) | = | -10.88272918 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Barrel Springs Elementary | -47 | ||||||||||||
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 | 33355 | 2408 | - | 2436 | = | -28 | * | (105 | / | 428) | = | -6.86915886 | ||
| 4 | 33358 | 2434 | - | 2485 | = | -51 | * | (109 | / | 428) | = | -12.98831775 | ||
| 5 | 33359 | 2498 | - | 2528 | = | -30 | * | (104 | / | 428) | = | -7.28971962 | ||
| 6 | 33362 | 2493 | - | 2552 | = | -59 | * | (110 | / | 428) | = | -15.16355136 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Barrel Springs Elementary | -42 | ||||||||||||
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 | 33945 | 2402 | - | 2436 | = | -34 | * | (91 | / | 399) | = | -7.75438595 | ||
| 4 | 33946 | 2434 | - | 2485 | = | -51 | * | (109 | / | 399) | = | -13.93233081 | ||
| 5 | 33948 | 2498 | - | 2528 | = | -30 | * | (114 | / | 399) | = | -8.57142855 | ||
| 6 | 33950 | 2490 | - | 2552 | = | -62 | * | (85 | / | 399) | = | -13.20802002 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Barrel Springs Elementary | -43 | ||||||||||||
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 | 33957 | 2407 | - | 2436 | = | -29 | * | (116 | / | 318) | = | -10.57861635 | ||
| 4 | 33959 | 2445 | - | 2485 | = | -40 | * | (90 | / | 318) | = | -11.32075468 | ||
| 5 | 33961 | 2478 | - | 2528 | = | -50 | * | (112 | / | 318) | = | -17.61006285 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Barrel Springs Elementary | -40 | ||||||||||||
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 | 34138 | 2412 | - | 2436 | = | -24 | * | (115 | / | 345) | = | -7.99999999 | ||
| 4 | 34139 | 2433 | - | 2485 | = | -52 | * | (126 | / | 345) | = | -18.99130433 | ||
| 5 | 34140 | 2509 | - | 2528 | = | -19 | * | (104 | / | 345) | = | -5.72753623 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Barrel Springs Elementary | -33 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -47 | -42 | -43 | -40 | -33 | -205.0 | -41.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -26.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -56.0
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 | 82% | 83% | 79% | 86% | 87% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Palmdale 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.
Barrel Springs Elementary math proficiency
Zero+ meets standard.
71% less $meal
73% less $meal
69% less $meal
81% 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.