TAILIEUCHUNG - Lecture Communication research - Chapter 11: Testing for differences

In this chapter students will be able to: Explain the difference between descriptive and inferential statistics; use the four analytical steps to interpret written research findings; identify if the appropriate test of difference is used with research questions and hypotheses; apart from the researcher's written presentation, independently interpret research findings. | Chapter 11 Testing for Differences Differences betweens groups or categories of the independent variable Statistical tests of difference reveal whether the differences observed are greater than differences that might occur by chance Chi-square t-test ANOVA Copyright c 2001 The McGraw-Hill Companies, Inc. Inferential Statistics Statistical test used to evaluate hypotheses and research questions Results of the sample assumed to hold true for the population if participants are Normally distributed on the dependent variable Randomly assigned to categories of the IV Caveats of application Copyright c 2001 The McGraw-Hill Companies, Inc. Alternative and Null Hypotheses Inferential statistics test the likelihood that the alternative hypothesis is true and the null hypothesis is not Significance level of .05 is generally the criterion for this decision If p .05, then alternative hypothesis accepted If p > .05, then null hypothesis is retained Copyright c 2001 The McGraw-Hill .

• PR - Truyền thông
• Communication research
• Lecture Communication research
• Research process
• Testing for differences
• Inferential statistics
• One dimensional chi square
• Quantitative communication research
• Qualitative communication research
• Quantitative research report
• Communication scholars
• Research questions
• Research process model
• Research hypotheses
• Quantitative research hypotheses
• Planning research
• Research ethics
• Designing qualitative research
• Research objective
• Organizing resources
• Conceptualizing quantitative research
• Assessing hypotheses
• Quantitative research designs
• Posttest experimental design
• Qualitative research report
• Presenting the data
• Qualitative research
• Mutual simultaneous shaping
• Qualitative reports
• Scholarly research
• Methodological extremes
• Experimental design