Joe Stefani (Data source)
Source data for Joe Stefani
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 | 1309339 | 2389 | - | 2436 | = | -47 | * | (168 | / | 517) | = | -15.27272727 | ||
| 4 | 1309340 | 2437 | - | 2485 | = | -48 | * | (160 | / | 517) | = | -14.85493229 | ||
| 5 | 1309343 | 2441 | - | 2528 | = | -87 | * | (189 | / | 517) | = | -31.80464211 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Joe Stefani | -62 | ||||||||||||
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 | 41061 | 2415 | - | 2436 | = | -21 | * | (71 | / | 607) | = | -2.45634266 | ||
| 4 | 41063 | 2431 | - | 2485 | = | -54 | * | (181 | / | 607) | = | -16.10214163 | ||
| 5 | 41065 | 2446 | - | 2528 | = | -82 | * | (158 | / | 607) | = | -21.34431628 | ||
| 6 | 41066 | 2478 | - | 2552 | = | -74 | * | (197 | / | 607) | = | -24.01647445 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Joe Stefani | -64 | ||||||||||||
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 | 42075 | 2396 | - | 2436 | = | -40 | * | (69 | / | 571) | = | -4.8336252 | ||
| 4 | 42077 | 2442 | - | 2485 | = | -43 | * | (165 | / | 571) | = | -12.42556918 | ||
| 5 | 42079 | 2425 | - | 2528 | = | -103 | * | (178 | / | 571) | = | -32.1085814 | ||
| 6 | 42081 | 2488 | - | 2552 | = | -64 | * | (159 | / | 571) | = | -17.82136602 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Joe Stefani | -67 | ||||||||||||
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 | 42090 | 2409 | - | 2436 | = | -27 | * | (96 | / | 586) | = | -4.42320818 | ||
| 4 | 42093 | 2441 | - | 2485 | = | -44 | * | (134 | / | 586) | = | -10.0614334 | ||
| 5 | 42094 | 2449 | - | 2528 | = | -79 | * | (176 | / | 586) | = | -23.72696238 | ||
| 6 | 42097 | 2465 | - | 2552 | = | -87 | * | (180 | / | 586) | = | -26.72354945 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Joe Stefani | -65 | ||||||||||||
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 | 42233 | 2407 | - | 2436 | = | -29 | * | (99 | / | 586) | = | -4.89931739 | ||
| 4 | 42234 | 2447 | - | 2485 | = | -38 | * | (167 | / | 586) | = | -10.82935153 | ||
| 5 | 42235 | 2437 | - | 2528 | = | -91 | * | (131 | / | 586) | = | -20.34300341 | ||
| 6 | 42236 | 2474 | - | 2552 | = | -78 | * | (189 | / | 586) | = | -25.15699657 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Joe Stefani | -61 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -62 | -64 | -67 | -65 | -61 | -319.0 | -63.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -57.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -69.8
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 | 89% | 85% | 86% | 85% | 83% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Merced City Elementary school district | County of Merced
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.
Joe Stefani math proficiency
Zero+ meets standard.
80% less $meal
73% less $meal
74% less $meal
76% less $meal
74% 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.