San Rafael Elementary (Data source)
Source data for San Rafael 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 | 1084008 | 2432 | - | 2436 | = | -4 | * | (75 | / | 183) | = | -1.63934426 | ||
| 4 | 1084011 | 2455 | - | 2485 | = | -30 | * | (56 | / | 183) | = | -9.18032784 | ||
| 5 | 1084012 | 2494 | - | 2528 | = | -34 | * | (52 | / | 183) | = | -9.66120217 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for San Rafael Elementary | -20 | ||||||||||||
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 | 33975 | 2455 | - | 2436 | = | 19 | * | (65 | / | 193) | = | 6.39896372 | ||
| 4 | 33978 | 2473 | - | 2485 | = | -12 | * | (77 | / | 193) | = | -4.78756476 | ||
| 5 | 33979 | 2512 | - | 2528 | = | -16 | * | (51 | / | 193) | = | -4.22797926 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for San Rafael Elementary | -3 | ||||||||||||
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 | 34571 | 2447 | - | 2436 | = | 11 | * | (94 | / | 228) | = | 4.53508771 | ||
| 4 | 34574 | 2504 | - | 2485 | = | 19 | * | (66 | / | 228) | = | 5.5 | ||
| 5 | 34576 | 2506 | - | 2528 | = | -22 | * | (68 | / | 228) | = | -6.56140351 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for San Rafael Elementary | 3 | ||||||||||||
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 | 34574 | 2433 | - | 2436 | = | -3 | * | (70 | / | 220) | = | -0.95454545 | ||
| 4 | 34576 | 2496 | - | 2485 | = | 11 | * | (89 | / | 220) | = | 4.44999999 | ||
| 5 | 34578 | 2549 | - | 2528 | = | 21 | * | (61 | / | 220) | = | 5.82272727 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for San Rafael Elementary | 9 | ||||||||||||
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 | 34746 | 2429 | - | 2436 | = | -7 | * | (67 | / | 214) | = | -2.19158878 | ||
| 4 | 34747 | 2491 | - | 2485 | = | 6 | * | (63 | / | 214) | = | 1.76635514 | ||
| 5 | 34748 | 2543 | - | 2528 | = | 15 | * | (84 | / | 214) | = | 5.88785046 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for San Rafael Elementary | 5 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -20 | -3 | 3 | 9 | 5 | -6.0 | -1.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 31.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -34.2
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 | 37% | 36% | 34% | 33% | 35% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Pasadena 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.
San Rafael Elementary math proficiency
Zero+ meets standard.
28% less $meal
26% less $meal
24% less $meal
29% less $meal
30% 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.