Standley Middle (Data source)
Source data for Standley 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 | 2272945 | 2574 | - | 2552 | = | 22 | * | (371 | / | 1048) | = | 7.78816793 | ||
| 7 | 2272946 | 2590 | - | 2567 | = | 23 | * | (323 | / | 1048) | = | 7.08874044 | ||
| 8 | 2272949 | 2602 | - | 2586 | = | 16 | * | (354 | / | 1048) | = | 5.40458014 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Standley Middle | 20 | ||||||||||||
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 | 69700 | 2572 | - | 2552 | = | 20 | * | (333 | / | 1034) | = | 6.4410058 | ||
| 7 | 69702 | 2611 | - | 2567 | = | 44 | * | (379 | / | 1034) | = | 16.12765955 | ||
| 8 | 69704 | 2613 | - | 2586 | = | 27 | * | (322 | / | 1034) | = | 8.40812378 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Standley Middle | 31 | ||||||||||||
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 | 71532 | 2575 | - | 2552 | = | 23 | * | (330 | / | 1041) | = | 7.29106626 | ||
| 7 | 71534 | 2597 | - | 2567 | = | 30 | * | (349 | / | 1041) | = | 10.05763686 | ||
| 8 | 71537 | 2608 | - | 2586 | = | 22 | * | (362 | / | 1041) | = | 7.65033621 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Standley Middle | 25 | ||||||||||||
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 | 71678 | 2588 | - | 2552 | = | 36 | * | (314 | / | 988) | = | 11.44129554 | ||
| 7 | 71679 | 2616 | - | 2567 | = | 49 | * | (322 | / | 988) | = | 15.96963562 | ||
| 8 | 71682 | 2599 | - | 2586 | = | 13 | * | (352 | / | 988) | = | 4.63157894 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Standley Middle | 32 | ||||||||||||
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 | 72163 | 2586 | - | 2552 | = | 34 | * | (342 | / | 990) | = | 11.74545453 | ||
| 7 | 72164 | 2620 | - | 2567 | = | 53 | * | (321 | / | 990) | = | 17.18484847 | ||
| 8 | 72165 | 2627 | - | 2586 | = | 41 | * | (327 | / | 990) | = | 13.54242423 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Standley Middle | 42 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 20 | 31 | 25 | 32 | 42 | 150.0 | 30.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 54.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 6.0
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 | 35% | 37% | 37% | 40% | 41% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
San Diego Unified school district | County of San Diego
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.
Standley Middle math proficiency
Zero+ meets standard.
24% less $meal
28% less $meal
29% less $meal
31% less $meal
33% 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.