Krystal School of Science, Math & Technology (Data source)
Source data for Krystal School of Science, Math & Technology
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 | 2088963 | 2441 | - | 2436 | = | 5 | * | (129 | / | 472) | = | 1.36652542 | ||
| 4 | 2088966 | 2498 | - | 2485 | = | 13 | * | (127 | / | 472) | = | 3.49788135 | ||
| 5 | 2088967 | 2540 | - | 2528 | = | 12 | * | (124 | / | 472) | = | 3.15254237 | ||
| 6 | 2088970 | 2526 | - | 2552 | = | -26 | * | (92 | / | 472) | = | -5.0677966 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Krystal School of Science, Math & Technology | 3 | ||||||||||||
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 | 64195 | 2458 | - | 2436 | = | 22 | * | (125 | / | 504) | = | 5.45634921 | ||
| 4 | 64197 | 2499 | - | 2485 | = | 14 | * | (130 | / | 504) | = | 3.6111111 | ||
| 5 | 64199 | 2546 | - | 2528 | = | 18 | * | (122 | / | 504) | = | 4.35714286 | ||
| 6 | 64201 | 2571 | - | 2552 | = | 19 | * | (127 | / | 504) | = | 4.78769839 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Krystal School of Science, Math & Technology | 18 | ||||||||||||
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 | 65993 | 2474 | - | 2436 | = | 38 | * | (142 | / | 507) | = | 10.64299801 | ||
| 4 | 65995 | 2502 | - | 2485 | = | 17 | * | (125 | / | 507) | = | 4.19132149 | ||
| 5 | 65996 | 2551 | - | 2528 | = | 23 | * | (122 | / | 507) | = | 5.53451675 | ||
| 6 | 65999 | 2587 | - | 2552 | = | 35 | * | (118 | / | 507) | = | 8.1459566 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Krystal School of Science, Math & Technology | 29 | ||||||||||||
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 | 66075 | 2463 | - | 2436 | = | 27 | * | (101 | / | 474) | = | 5.75316454 | ||
| 4 | 66076 | 2505 | - | 2485 | = | 20 | * | (138 | / | 474) | = | 5.8227848 | ||
| 5 | 66079 | 2549 | - | 2528 | = | 21 | * | (118 | / | 474) | = | 5.22784809 | ||
| 6 | 66080 | 2584 | - | 2552 | = | 32 | * | (117 | / | 474) | = | 7.89873418 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Krystal School of Science, Math & Technology | 25 | ||||||||||||
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 | 66460 | 2489 | - | 2436 | = | 53 | * | (113 | / | 469) | = | 12.7697228 | ||
| 4 | 66461 | 2476 | - | 2485 | = | -9 | * | (122 | / | 469) | = | -2.34115138 | ||
| 5 | 66462 | 2548 | - | 2528 | = | 20 | * | (131 | / | 469) | = | 5.58635394 | ||
| 6 | 66463 | 2582 | - | 2552 | = | 30 | * | (103 | / | 469) | = | 6.58848612 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Krystal School of Science, Math & Technology | 23 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| 3 | 18 | 29 | 25 | 23 | 98.0 | 19.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 49.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -10.4
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 | 48% | 50% | 40% | 51% | 48% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Hesperia Unified school district | County of San Bernardino
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.
Krystal School of Science, Math & Technology math proficiency
Zero+ meets standard.
36% less $meal
37% less $meal
34% less $meal
43% less $meal
41% 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.