PR 680 Chapter Notes - Chapter 7: Multivariate Analysis, Missing Data, Univariate

• School: Ball State University
• Department: Public Relations
• Course: PR 680
• Professor: Dr. Sungwon Chung

Document Summary

Anomalous data: data that appears out of line. , discrepancies may also indicate that measurement tools need closer examination, data reduction. Data reduction and multivariate data: multivariate analysis studies the interaction of three or more variables. Increasingly complex tables become increasingly difficult to comprehend: measures of central tendency. Mean: mean is often called the average value, calculate it by adding all the individual values and dividing by the number of values. Mode: mode is the most frequent value. It is commonly in the midrange of scores. Median: median is the middle range value, when all the values are arranged from lowest to highest, we find the value that has an equal number of values on either side of it. Distribution: three modes are a tri-modal distribution, two scores appearing with equal frequency would result in a bi-modal distribution, measures of dispersion.