Riverdale Elementary (Data source)
Source data for Riverdale 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 |
||
| 4 | 388430 | 2426 | - | 2485 | = | -59 | * | (126 | / | 537) | = | -13.84357539 | ||
| 5 | 388433 | 2452 | - | 2528 | = | -76 | * | (106 | / | 537) | = | -15.00186215 | ||
| 6 | 388434 | 2455 | - | 2552 | = | -97 | * | (90 | / | 537) | = | -16.25698321 | ||
| 7 | 388437 | 2490 | - | 2567 | = | -77 | * | (104 | / | 537) | = | -14.91247666 | ||
| 8 | 388438 | 2539 | - | 2586 | = | -47 | * | (111 | / | 537) | = | -9.71508377 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Riverdale Elementary | -70 | ||||||||||||
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 |
||
| 4 | 11840 | 2437 | - | 2485 | = | -48 | * | (129 | / | 566) | = | -10.93992931 | ||
| 5 | 11842 | 2459 | - | 2528 | = | -69 | * | (132 | / | 566) | = | -16.09187274 | ||
| 6 | 11844 | 2459 | - | 2552 | = | -93 | * | (110 | / | 566) | = | -18.07420488 | ||
| 7 | 11846 | 2479 | - | 2567 | = | -88 | * | (90 | / | 566) | = | -13.9929328 | ||
| 8 | 11847 | 2550 | - | 2586 | = | -36 | * | (105 | / | 566) | = | -6.67844521 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Riverdale Elementary | -66 | ||||||||||||
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 |
||
| 4 | 12166 | 2445 | - | 2485 | = | -40 | * | (105 | / | 579) | = | -7.253886 | ||
| 5 | 12168 | 2464 | - | 2528 | = | -64 | * | (129 | / | 579) | = | -14.25906733 | ||
| 6 | 12170 | 2472 | - | 2552 | = | -80 | * | (134 | / | 579) | = | -18.51468048 | ||
| 7 | 12173 | 2479 | - | 2567 | = | -88 | * | (116 | / | 579) | = | -17.63039722 | ||
| 8 | 12174 | 2518 | - | 2586 | = | -68 | * | (95 | / | 579) | = | -11.15716752 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Riverdale Elementary | -69 | ||||||||||||
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 |
||
| 4 | 12197 | 2449 | - | 2485 | = | -36 | * | (104 | / | 586) | = | -6.38907847 | ||
| 5 | 12200 | 2486 | - | 2528 | = | -42 | * | (106 | / | 586) | = | -7.59726962 | ||
| 6 | 12201 | 2468 | - | 2552 | = | -84 | * | (129 | / | 586) | = | -18.49146751 | ||
| 7 | 12204 | 2485 | - | 2567 | = | -82 | * | (132 | / | 586) | = | -18.4709897 | ||
| 8 | 12205 | 2538 | - | 2586 | = | -48 | * | (115 | / | 586) | = | -9.41979518 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Riverdale Elementary | -60 | ||||||||||||
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 |
||
| 4 | 12297 | 2461 | - | 2485 | = | -24 | * | (113 | / | 586) | = | -4.62798634 | ||
| 5 | 12298 | 2461 | - | 2528 | = | -67 | * | (110 | / | 586) | = | -12.57679177 | ||
| 6 | 12299 | 2494 | - | 2552 | = | -58 | * | (105 | / | 586) | = | -10.39249145 | ||
| 7 | 12300 | 2508 | - | 2567 | = | -59 | * | (126 | / | 586) | = | -12.68600678 | ||
| 8 | 12301 | 2519 | - | 2586 | = | -67 | * | (132 | / | 586) | = | -15.09215012 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Riverdale Elementary | -55 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -70 | -66 | -69 | -60 | -55 | -320.0 | -64.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -46.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -82.0
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 | 84% | 86% | 87% | 84% | 80% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Riverdale Joint Unified school district | County of Fresno
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.
Riverdale Elementary math proficiency
Zero+ meets standard.
77% less $meal
77% less $meal
79% less $meal
76% less $meal
73% 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 Riverdale Joint Unified (1)
| Riverdale Elementary |