PSYC 2920 Chapter Notes - Chapter 7: Nonprobability Sampling, Convenience Sampling, Confidence Interval
21 Mar 2018
School
Department
Course
Professor
Document Summary
Close-ended questions: questions that offer respondents limited options. Confidence interval: an interval of values that will capture the true population value a certain proportion of times (e. g. , 95%) that the confidence interval is calculated in that way. Cluster sampling: a method of sampling in which clusters of individuals are identified. Clusters are sampled, and then all individuals in each cluster are included in the sample. Convenience sampling: selecting participants in a haphazard manner, usually on the basis of availability and not with regard to having a representative sample of the population; a type of non-probability sampling. External validity: the degree to which the results of an experiment may be generalized. Focus group: a qualitative method of data collection in which 6-10 people are interviewed together about a particular topic. Graphic rating scale: a type of closed-ended response where 2 words appear on either side of a solid line.
