COMM 308 Lecture Notes - Lecture 6: Sampling Frame, Cluster Sampling, Systematic Sampling

• School: Texas A&M University
• Department: Communication
• Course: COMM 308
• Professor: Kylene Joy Wesner

Document Summary

Population every person in the group you are studying. Sample: part of a population selected for study. Population-sample: parameter-statistic, will never know the parameter but we can know the statistic. List from which you will draw a sample. Every unit has an equal chance of being selected: quantitative research ony. Sampling is based on judgment by the researcher: quantitative resear(cid:272)h (cid:272)an use (cid:271)ut (cid:272)an"t generalize to population, qualitative research only uses this type, nonprobability sampling. Percentage of each group in sample is the same as the percentage of that group in population. Random sampling takes place within each group. Depends on: purpose of the research, desired level of statistical confidence, homogeneity of the population. Postal sampling: may be dated, cannot access the transient & homeless. Phone sampling: problems accessing mobile numbers, consumer resistance to calls. Internet sampling: difficulties generalizing from internet population to general population. Council of american survey research organizations http://www. casro. org.