PSYC 2001 Lecture Notes - Lecture 5: Sampling Bias, Nonprobability Sampling, Cluster Sampling

• School: Carleton University
• Department: Psychology
• Course: PSYC 2001
• Professor: Jordan Schoenherr

Document Summary

Population the large group of interest from which a researcher selects a sample. Sample the small set of individuals who participate in the study. Target population the group defi(cid:374)ed (cid:271)y the resear(cid:272)her"s spe(cid:272)ifi(cid:272) i(cid:374)terests. Accessible population local clients that are easy to reach within the area. Representativeness the extent to which the characteristics of the sample accurately reflect the charactersistics of the population. Representative sample a sample with the same characteristics as the population. Biased sample a sample with noticeably different characteristic from those of the population. Selection bias/sampling bias the sampling procedure favors the selection of some individuals over others. Law of large numbers states that the larger the sample size, the more it is that values obtained from the sample are similar to the actual values of the population. Average distance between a sample mean and population mean. Sampling the process of selecting individuals for a study.