March 2010 Teaching with Contingency Tables 1. Welcome! Introduction Session I – How to teach with contingency tables – DataCounts! tutorial – Interactive.

March 2010

Teaching with Contingency Tables

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Welcome!• Introduction• Session I

– How to teach with contingency tables– DataCounts! tutorial– Interactive DataCounts!

demonstration

• Session II– Individual activity and work time

• Wrap-Up

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Contingency Tables• Contingency Tables

– Allow students to understand the relationship between two variables and introduce additional variables simultaneously.

• Highlight social trends and concepts– What affects income?– What household types are the more likely to

be in poverty?– How do levels of education between

immigrants and native born citizens compare?• Contingency tables using real world data

bring abstract social concepts to life.

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Welcome to DataCounts!

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WebCHIP Demonstration

• Starting with a question– Do immigrants who entered the U.S.

recently earn less than those who entered decades ago? (How does the year of entry affect earnings for immigrants?)

– Does race make a difference?

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WebCHIP Demonstration

• Using 2005 American Community Survey data, we will look at the data set: workim05.dat

• This data set looks at full-time, year-round, civilian workers, age 25+ for race, gender, age, immigration, education and earnings variables.

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• We will use an extract of the 2005 American Community Survey

• What would we expect to see in a table that answers the question?

Planning

Total

Total

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When immigrated

Ear

ning

s

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Planning

Native BornImmigration: Before

1990Immigration: 1990-

2005 Total

Less $25,000

$25-34,999

$35-49,999

$50-69,999

$70-99,999

$100,000 and over

Total

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• Now that we’ve seen the variables and their categories, we know the table headers

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Percent-Across Table

Percent-Down Table

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One table for each control variable category (i.e. one table for each race)

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One graph will appear for each control variable category. Select “Next graph” to view each graph.

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One graph for each control variable category (i.e. one graph for each race)

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Interactive Demonstration

• Starting with a question– Are immigrants who entered the U.S.

recently less educated than those who entered decades ago? (How does the year of entry affect educational attainment for immigrants?)

– Does race make a difference?

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Interactive Demonstration

• Using 2005 American Community Survey Data, we will use the data set: workim05.dat

• This data set looks at full-time, year-round, civilian workers, age 25+ for race, gender, age, immigration, education and earnings variables.

• We will use the new WebCHIP 2.0

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• We will use an extract of the 2005 American Community Survey

• What would we expect to see in a table that answers the question?

Planning

Total

Total

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When immigrated

Edu

catio

n

Planning

Native BornImmigration: Before

1990Immigration: 1990-

2005 Total

Less than High School

High School Grad

Some College

College Grad

Total

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• Now that we’ve seen the variables and their categories, we know the table headers

INDIVIDUAL ACTIVITY

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Individual Exercises– Question 1

• Open the Activity document.• Use DataCounts! datasets and WebCHIP to

complete exercises

– Need Help?• Chat with SSDAN Staff members or Bill

through WebEx with your questions

Individual Exercises– Question 2

• Scroll down to Question 2 in your activity document.

• Use DataCounts! datasets and WebCHIP to complete exercise.

– Need Help?• Chat with SSDAN Staff members or Bill

through WebEx with your questions

– Finished?• Email your completed activity to

ssdan@isr.umich.edu

Questions/Discussion

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Find interactive tutorials on how to navigate the website and use WebCHIP

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Find over 100 learning modules utilizing DataCounts! datasets and other data sources.

Submit your own module to share with the rest of the DataCounts! community.

Search by grade level, subject, or use the browse mode.

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Learn more about DataCounts!, WebCHIP and SSDAN

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Find detailed information for each dataset.

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Find datasets and launch WebCHIP

Search, Browse or use the manual launcher to find the dataset and open it using WebCHIP

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Using the Data Browser, first select the data source (American Community Survey, Census, CPS or GSS).

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We also have state-level ACS data sets located in the ‘geo2005’ collection.

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We also have state-level ACS data sets located in the ‘geoACS2005’ collection.

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Thank You!

• Check back for:– New DataCounts! updates– Future Webinars, PowerPoints and videos

• http://ssdan.net/datacounts/training.html

– If you need help creating new modules or would like custom datasets made, please let us know!

• Questions or concerns? • Contact the SSDAN office at:

– 734-764-4064– ssdan@isr.umich.edu

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