FRHD 3070 Lecture Notes - Lecture 8: Quasi, Guelphs And Ghibellines, Sampling Bias

• School: University of Guelph
• Department: Family Relations and Human Development
• Course: FRHD 3070
• Professor: John Dwyer

Document Summary

Longitudinal method: the same age group of people are observed at different points in time as they grow older, study of aggression by cote et all (2006) Sampling techniques: two basic techniques for sampling individuals from a population, probability sampling - each member of the population has a specifiable probability of being chosen, non-probability sampling: the probability of selecting ant particular member is known. Probability sampling procedures: defined, a procedure where individuals from the population have a known probability (or chance) of being selected for a study, types, simple, systematic, stratified, cluster. Systematic probability sampling: random sampling in which a systematic approach is used, unbiased sample that is selected efficiently, ex, selected every x individual from a list. You would identify all grade 2 classes and the randomly sample from the list and select specific grade 2 classes to participate ex. have 6 classes.