TAILIEUCHUNG - Lecture Communication research: Asking questions, finding answers (4/e): Chapter 10 - Joann Keyton

Chapter 10 - Descriptive statistics. After reading this chapter, you should be able to: Select existing or design appropriate questionnaire items and response sets, use open and closed questions appropriately, pretest the method of data collection, collect the data in an honest and ethical manner, analyze the data completely and appropriately, draw conclusions that do not overstate the limitations of your data or sample, present the data to others in an appropriate fashion,. | Chapter 10 Descriptive Statistics Numbers One tool for collecting data about communication phenomena Capture quality, intensity, value, or degree Only meaningful if they are interpreted Operationalizations specify how data are collected and become numerical Looking at a Dataset Normal Curve Also known as bell curve A theoretical distribution of scores Majority of cases distributed around the peak in the middle Progressively fewer cases moving away form the middle Symmetrical – one side mirrors the other Mean, median, and mode have the same value Normal Curve Skewed Distributions Curve is asymmetrical Positively skewed curve – very few high scores Negatively skewed curve – very few low scores Descriptive Statistics Summary information for each variable Number of cases Central tendency Dispersion Used by researcher to describe variables Used in statistical tests to analyze differences and relationships between variables Number of Cases Number of cases for which .

• PR - Truyền thông
• Communication research
• Lecture Communication research
• Quantitative communication research
• Qualitative communication research
• Descriptive statistics
• Quantitative research report
• Communication scholars
• Research questions
• Research process model
• Research process
• 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