Wells Middle (Data source)
Source data for Wells Middle
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 |
||
| 6 | 1643874 | 2455 | - | 2552 | = | -97 | * | (310 | / | 936) | = | -32.12606836 | ||
| 7 | 1643877 | 2463 | - | 2567 | = | -104 | * | (300 | / | 936) | = | -33.33333328 | ||
| 8 | 1643878 | 2466 | - | 2586 | = | -120 | * | (326 | / | 936) | = | -41.79487176 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Wells Middle | -107 | ||||||||||||
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 |
||
| 6 | 51390 | 2442 | - | 2552 | = | -110 | * | (334 | / | 971) | = | -37.83728113 | ||
| 7 | 51392 | 2475 | - | 2567 | = | -92 | * | (327 | / | 971) | = | -30.98249224 | ||
| 8 | 51394 | 2489 | - | 2586 | = | -97 | * | (310 | / | 971) | = | -30.96807411 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Wells Middle | -100 | ||||||||||||
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 |
||
| 6 | 52873 | 2440 | - | 2552 | = | -112 | * | (321 | / | 992) | = | -36.24193541 | ||
| 7 | 52875 | 2455 | - | 2567 | = | -112 | * | (341 | / | 992) | = | -38.5 | ||
| 8 | 52878 | 2463 | - | 2586 | = | -123 | * | (330 | / | 992) | = | -40.91733867 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Wells Middle | -116 | ||||||||||||
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 |
||
| 6 | 52964 | 2451 | - | 2552 | = | -101 | * | (310 | / | 967) | = | -32.37849011 | ||
| 7 | 52966 | 2459 | - | 2567 | = | -108 | * | (335 | / | 967) | = | -37.41468451 | ||
| 8 | 52968 | 2468 | - | 2586 | = | -118 | * | (322 | / | 967) | = | -39.29265763 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Wells Middle | -109 | ||||||||||||
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 |
||
| 6 | 53195 | 2445 | - | 2552 | = | -107 | * | (249 | / | 885) | = | -30.10508472 | ||
| 7 | 53196 | 2459 | - | 2567 | = | -108 | * | (310 | / | 885) | = | -37.83050838 | ||
| 8 | 53197 | 2476 | - | 2586 | = | -110 | * | (326 | / | 885) | = | -40.51977391 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Wells Middle | -108 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -107 | -100 | -116 | -109 | -108 | -540.0 | -108.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -93.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -123.0
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 | 96% | 94% | 95% | 94% | 93% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alvord Unified school district | County of Riverside
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.
Wells Middle math proficiency
Zero+ meets standard.
87% less $meal
82% less $meal
81% less $meal
84% less $meal
82% 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.
Intermediate/Middle Schools (Public) schools in Alvord Unified (4)
| Arizona Middle | Loma Vista Middle | Wells Middle |
| Ysmael Villegas Middle |