CMN 3102 Lecture Notes - Lecture 4: World Values Survey, Sampling Error, Sample Size Determination

• School: University of Ottawa
• Department: Communication
• Course: CMN 3102
• Professor: Ivan Katchanovski

Document Summary

Use in csl research projects or mc research projects. Examples: what are attitudes of canadians towards social o! Attitudes of canadians towards social media differ by age media? groups. Population: all cases about which one seeks knowledge. Representative sample: a sample containing the essential characteristics of the population. Probability sample: a sample selected using a random process such that each element in the population has a known probability of being selected. Weight: makes a sample representative when there are small deviations o! Participants/respondents are selected based on their convenient availability. The researcher makes contact with some individuals, who in turn provide contacts for other participants. E. g. , sometimes students who participate in survey studies are asked to come up with the names of some non-students who may be willing to participate. Non-random selection of participants/respondents based on a specific purpose of a project. Non-probability/non-random samples are difficult to generalize to population o!