Natividad Elementary (Data source)
Source data for Natividad 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 | 1361353 | 2352 | - | 2436 | = | -84 | * | (105 | / | 397) | = | -22.21662467 | ||
| 4 | 1361355 | 2416 | - | 2485 | = | -69 | * | (101 | / | 397) | = | -17.55415614 | ||
| 5 | 1361356 | 2418 | - | 2528 | = | -110 | * | (101 | / | 397) | = | -27.9848866 | ||
| 6 | 1361359 | 2457 | - | 2552 | = | -95 | * | (90 | / | 397) | = | -21.53652385 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Natividad Elementary | -89 | ||||||||||||
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 | 42829 | 2361 | - | 2436 | = | -75 | * | (102 | / | 418) | = | -18.30143535 | ||
| 4 | 42831 | 2404 | - | 2485 | = | -81 | * | (107 | / | 418) | = | -20.73444974 | ||
| 5 | 42833 | 2437 | - | 2528 | = | -91 | * | (105 | / | 418) | = | -22.85885165 | ||
| 6 | 42834 | 2442 | - | 2552 | = | -110 | * | (104 | / | 418) | = | -27.36842097 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Natividad Elementary | -89 | ||||||||||||
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 | 43904 | 2403 | - | 2436 | = | -33 | * | (94 | / | 391) | = | -7.93350383 | ||
| 4 | 43906 | 2393 | - | 2485 | = | -92 | * | (95 | / | 391) | = | -22.35294109 | ||
| 5 | 43907 | 2419 | - | 2528 | = | -109 | * | (102 | / | 391) | = | -28.43478259 | ||
| 6 | 43909 | 2458 | - | 2552 | = | -94 | * | (100 | / | 391) | = | -24.04092065 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Natividad Elementary | -83 | ||||||||||||
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 | 43920 | 2405 | - | 2436 | = | -31 | * | (83 | / | 363) | = | -7.08815425 | ||
| 4 | 43923 | 2420 | - | 2485 | = | -65 | * | (86 | / | 363) | = | -15.399449 | ||
| 5 | 43924 | 2401 | - | 2528 | = | -127 | * | (96 | / | 363) | = | -33.58677674 | ||
| 6 | 43927 | 2454 | - | 2552 | = | -98 | * | (98 | / | 363) | = | -26.4573002 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Natividad Elementary | -83 | ||||||||||||
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 | 44052 | 2409 | - | 2436 | = | -27 | * | (96 | / | 364) | = | -7.1208791 | ||
| 4 | 44053 | 2442 | - | 2485 | = | -43 | * | (81 | / | 364) | = | -9.5686813 | ||
| 5 | 44054 | 2425 | - | 2528 | = | -103 | * | (90 | / | 364) | = | -25.46703294 | ||
| 6 | 44055 | 2445 | - | 2552 | = | -107 | * | (97 | / | 364) | = | -28.51373621 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Natividad Elementary | -71 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -89 | -89 | -83 | -83 | -71 | -415.0 | -83.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -62.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -104.0
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 | 95% | 92% | 94% | 88% | 92% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Salinas City Elementary school district | County of Monterey
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.
Natividad Elementary math proficiency
Zero+ meets standard.
76% less $meal
83% less $meal
81% less $meal
84% less $meal
87% 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.