Unit 5 CA 517 1

Unit 5bJust Hard Work—Statistics

and the Thesis or Project Process

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Cool Bicycles

Unit 5 CA 517 2

Statistics

Chi-square—Compares groups frequency (nominal data)

t- test –Compares means of two groups (interval data).

ANOVA—Compares means of multiple groups (interval data).

Correlation—Compares trends of two variables (interval data).

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Unit 5 CA 517 3

A Statistical Test Is Required to Test A Hypothesis!

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Unit 5 CA 517 4

Null Hypothesis

The statistical hypothesis is sometimes called the Null Hypothesis. It is the hypothesis that is tested.

There is no significant difference. . .

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Unit 5 CA 517 5

Picking a statistical test

Need to know type of data (e.g., nominal, ordinal)

Need to know nature of group comparison or variable relationship.

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Unit 5 CA 517 6

Decision-Making

Study of statistics. Advisor’s advice. Statistics professor’s advice. Use a chart to guide you such as this one:

http://www.graphpad.com/www/book/Choose.htm

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Unit 5 CA 517 7

Review Reading--Handout

Dalmatian dog riding a bike in Japan

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Unit 5 CA 517 8

Communication Research = Eclectic methods Experiments Ethnography (field observation) Discourse analysis Survey methods Network analysis Content analysis Rhetorical methods Feminist methods

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Unit 5 CA 517 9

Proposal—Follow the APA Structure

Straightforward Title. Background. Operational Definition. Research Question. Survey of Literature. Proposed Design. Measure and Statistics. Presentation Method

(Defense).

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Unit 5 CA 517 10

What do you do with your proposal now?

Advisor to work with you through the process. Committee members. Obtain IRB Approval

Unit 5 CA 517 11

Process

Proposal and every chapter of thesis goes to the whole committee as you proceed.

Keep committee informed about project as you go along.

Committees don’t like surprises—and neither will you.

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Unit 5 CA 517 12

End

Information from Kerlinger & Lee, and Sumser.

Photos from students and Google search word “funny.”