Century High (Data source)
Source data for Century 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 | 1208890 | 2429 | - | 2628 | = | -199 | * | (71 | / | 71) | = | -199.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Century High | -199 |
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 | 37578 | 2453 | - | 2628 | = | -175 | * | (55 | / | 55) | = | -175.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Century High | -175 |
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 | 38419 | 2445 | - | 2628 | = | -183 | * | (59 | / | 59) | = | -183.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Century High | -183 |
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 | 38392 | 2441 | - | 2628 | = | -187 | * | (58 | / | 58) | = | -187.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Century High | -187 |
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 | 38590 | 2431 | - | 2628 | = | -197 | * | (82 | / | 82) | = | -197.0 | ||
Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Century High | -197 |
Last steps
Compute the average
2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
---|---|---|---|---|---|---|
-199 | -175 | -183 | -187 | -197 | -941.0 | -188.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -161.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -215.2
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 | 70% | 64% | 60% | 79% | 64% |
Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Alhambra Unified school district | County of Los Angeles
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.
Century High math proficiency
Zero+ meets standard.
62% less $meal
60% less $meal
53% less $meal
70% 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.
Continuation High Schools schools in Alhambra Unified (1)
Century High |