Rowland Elementary (Data source)
Source data for Rowland 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 | 1185536 | 2417 | - | 2436 | = | -19 | * | (76 | / | 290) | = | -4.97931034 | ||
| 4 | 1185537 | 2436 | - | 2485 | = | -49 | * | (80 | / | 290) | = | -13.51724133 | ||
| 5 | 1185540 | 2451 | - | 2528 | = | -77 | * | (64 | / | 290) | = | -16.99310344 | ||
| 6 | 1185541 | 2463 | - | 2552 | = | -89 | * | (70 | / | 290) | = | -21.48275859 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Rowland Elementary | -57 | ||||||||||||
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 | 36901 | 2429 | - | 2436 | = | -7 | * | (53 | / | 276) | = | -1.3442029 | ||
| 4 | 36903 | 2446 | - | 2485 | = | -39 | * | (80 | / | 276) | = | -11.30434781 | ||
| 5 | 36906 | 2484 | - | 2528 | = | -44 | * | (77 | / | 276) | = | -12.27536231 | ||
| 6 | 36907 | 2447 | - | 2552 | = | -105 | * | (66 | / | 276) | = | -25.10869557 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Rowland Elementary | -50 | ||||||||||||
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 | 37680 | 2412 | - | 2436 | = | -24 | * | (81 | / | 291) | = | -6.68041236 | ||
| 4 | 37682 | 2461 | - | 2485 | = | -24 | * | (53 | / | 291) | = | -4.37113402 | ||
| 5 | 37683 | 2475 | - | 2528 | = | -53 | * | (82 | / | 291) | = | -14.93470787 | ||
| 6 | 37685 | 2472 | - | 2552 | = | -80 | * | (75 | / | 291) | = | -20.61855664 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Rowland 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 | 37624 | 2406 | - | 2436 | = | -30 | * | (73 | / | 296) | = | -7.39864863 | ||
| 4 | 37626 | 2445 | - | 2485 | = | -40 | * | (79 | / | 296) | = | -10.67567564 | ||
| 5 | 37628 | 2463 | - | 2528 | = | -65 | * | (61 | / | 296) | = | -13.39527027 | ||
| 6 | 37630 | 2494 | - | 2552 | = | -58 | * | (83 | / | 296) | = | -16.26351349 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Rowland Elementary | -48 | ||||||||||||
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 | 37835 | 2400 | - | 2436 | = | -36 | * | (72 | / | 287) | = | -9.03135888 | ||
| 4 | 37836 | 2430 | - | 2485 | = | -55 | * | (74 | / | 287) | = | -14.18118466 | ||
| 5 | 37837 | 2465 | - | 2528 | = | -63 | * | (76 | / | 287) | = | -16.68292681 | ||
| 6 | 37838 | 2475 | - | 2552 | = | -77 | * | (65 | / | 287) | = | -17.43902437 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Rowland Elementary | -57 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -57 | -50 | -47 | -48 | -57 | -259.0 | -51.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -39.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -63.8
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% | 87% | 88% | 93% | 93% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rowland 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.
Rowland Elementary math proficiency
Zero+ meets standard.
79% less $meal
79% less $meal
80% less $meal
85% less $meal
88% 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.