CRM 2303 Lecture Notes - Lecture 9: Snowball Sampling, Quota Sampling, Sampling Bias

• School: University of Ottawa
• Department: Criminology
• Course: CRM 2303
• Professor: Holly Johnson

Document Summary

Sample a subset or smaller group of people, places or things taken from a larger group eg. , study a sample of several thousands of canadians to find out the rate of crime victimization among all canadians. Sampling units/elements elements of the population that are chosen to be included in the sample individuals, households, newspaper articles, other. Universe the broad group to whom we want to generalize judges, canadians, undergraduate students. Target population population specified in concrete terms eg. , all households in canada with a landline. Sampling frame a complete list of all sampling elements in the target population list of valid phone numbers, registered voters, program participants, email addresses, inmates, students, neighbourhoods vary in terms of accuracy, availability. Homogeneity the degree to which people/elements are similar eg. , blood sample. Heterogeneity the degree of diversity choose the sample carefully to ensure it is representative of the population in its diversity depending on attributes of interest.