Sam V. Curtis Elementary (Data source)
Source data for Sam V. Curtis 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 | 2035859 | 2385 | - | 2436 | = | -51 | * | (116 | / | 302) | = | -19.58940396 | ||
| 4 | 2035862 | 2420 | - | 2485 | = | -65 | * | (90 | / | 302) | = | -19.37086093 | ||
| 5 | 2035863 | 2441 | - | 2528 | = | -87 | * | (96 | / | 302) | = | -27.65562908 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Sam V. Curtis Elementary | -67 | ||||||||||||
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 | 62550 | 2399 | - | 2436 | = | -37 | * | (99 | / | 295) | = | -12.41694914 | ||
| 4 | 62552 | 2412 | - | 2485 | = | -73 | * | (110 | / | 295) | = | -27.22033892 | ||
| 5 | 62554 | 2458 | - | 2528 | = | -70 | * | (86 | / | 295) | = | -20.40677961 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Sam V. Curtis Elementary | -60 | ||||||||||||
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 | 64342 | 2406 | - | 2436 | = | -30 | * | (95 | / | 304) | = | -9.375 | ||
| 4 | 64345 | 2443 | - | 2485 | = | -42 | * | (94 | / | 304) | = | -12.98684209 | ||
| 5 | 64347 | 2435 | - | 2528 | = | -93 | * | (115 | / | 304) | = | -35.18092099 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Sam V. Curtis Elementary | -58 | ||||||||||||
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 | 64450 | 2420 | - | 2436 | = | -16 | * | (92 | / | 287) | = | -5.12891986 | ||
| 4 | 64451 | 2446 | - | 2485 | = | -39 | * | (96 | / | 287) | = | -13.04529615 | ||
| 5 | 64454 | 2465 | - | 2528 | = | -63 | * | (99 | / | 287) | = | -21.73170731 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Sam V. Curtis 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 | 64817 | 2401 | - | 2436 | = | -35 | * | (123 | / | 310) | = | -13.88709676 | ||
| 4 | 64818 | 2451 | - | 2485 | = | -34 | * | (91 | / | 310) | = | -9.98064516 | ||
| 5 | 64819 | 2479 | - | 2528 | = | -49 | * | (96 | / | 310) | = | -15.17419353 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Sam V. Curtis Elementary | -39 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -67 | -60 | -58 | -40 | -39 | -264.0 | -52.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -16.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -88.8
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 | 85% | 92% | 90% | 91% | 93% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Rialto Unified 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.
Sam V. Curtis Elementary math proficiency
Zero+ meets standard.
74% less $meal
82% less $meal
79% less $meal
85% less $meal
86% 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.