Strathmore High (Data source)
Source data for Strathmore 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 | 3078529 | 2522 | - | 2628 | = | -106 | * | (69 | / | 69) | = | -106.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Strathmore High | -106 | ||||||||||||
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 |
||
| 11 | 94786 | 2500 | - | 2628 | = | -128 | * | (70 | / | 70) | = | -128.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Strathmore High | -128 | ||||||||||||
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 |
||
| 11 | 97566 | 2513 | - | 2628 | = | -115 | * | (67 | / | 67) | = | -115.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Strathmore High | -115 | ||||||||||||
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 | 97745 | 2525 | - | 2628 | = | -103 | * | (81 | / | 81) | = | -103.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Strathmore High | -103 | ||||||||||||
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 |
||
| 11 | 98401 | 2526 | - | 2628 | = | -102 | * | (89 | / | 89) | = | -102.0 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Strathmore High | -102 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -106 | -128 | -115 | -103 | -102 | -554.0 | -110.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -80.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -140.8
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 | 87% | 84% | 84% | 82% | 74% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Porterville Unified school district | County of Tulare
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.
Strathmore High math proficiency
Zero+ meets standard.
84% less $meal
80% less $meal
84% less $meal
82% less $meal
74% 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 Porterville Unified (4)
| Granite Hills High | Monache High | Porterville High |
| Strathmore High |