Waterford High (Data source)
Source data for Waterford High
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 |
||
| 11 | 2973603 | 2551 | - | 2628 | = | -77 | * | (128 | / | 128) | = | -77.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Waterford High | -77 | ||||||||||||
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 |
||
| 7 | 90973 | 0 | - | 2567 | = | * | (1 | / | 114) | = | ||||
| 8 | 90975 | 0 | - | 2586 | = | * | (1 | / | 114) | = | ||||
| 11 | 90977 | 2589 | - | 2628 | = | -39 | * | (112 | / | 114) | = | -38.31578946 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Waterford High | -38 | ||||||||||||
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 |
||
| 7 | 93716 | 0 | - | 2567 | = | * | (0 | / | 120) | = | ||||
| 8 | 93718 | 0 | - | 2586 | = | * | (0 | / | 120) | = | ||||
| 11 | 93720 | 2587 | - | 2628 | = | -41 | * | (117 | / | 120) | = | -39.975 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Waterford High | -40 | ||||||||||||
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 |
||
| 11 | 93928 | 2573 | - | 2628 | = | -55 | * | (126 | / | 126) | = | -55.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Waterford High | -55 | ||||||||||||
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 |
||
| 8 | 94555 | 0 | - | 2586 | = | * | (0 | / | 136) | = | ||||
| 11 | 94556 | 2591 | - | 2628 | = | -37 | * | (135 | / | 136) | = | -36.72794115 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Waterford High | -37 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -77 | -38 | -40 | -55 | -37 | -247.0 | -49.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 1.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.4
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 | 58% | 66% | 63% | 73% | 74% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Waterford Unified school district | County of Stanislaus
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.
Waterford High math proficiency
Zero+ meets standard.
48% less $meal
54% less $meal
52% less $meal
62% less $meal
62% 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.
High Schools (Public) schools in Waterford Unified (1)
| Waterford High |