CC233 Lecture Notes - Lecture 6: Systematic Sampling, Dependent And Independent Variables, Royal Institute Of Technology

• School: WLU
• Department: Criminology
• Course: CC233
• Professor: dr.lin

Document Summary

For example, internal validity is stronger in social experiments than in survey research: internal validity is synonymous with construct validity, whereas external validity is synonymous with generalizability, all the above is correct. We have a population we are interested in sampling. Studying millions of people that is very costly and time consuming in any given population. We find the sample and apply it to the population that is called external validity= generalizability. Sampling: the process of selecting a subset of cases in order to draw conclusions about the entire set. The population to which researchers would like to generalize their results: example: university students, something that you want to study. The entity about whom or which the researcher gathers information: example: individuals, group, social artifacts. Subset of people selected for a study. Coverage error: a mismatch between the target population and sampling frame. Under coverage- omission: example: phone book. Overcoverage: sampled twice, wrong inclusion (criteria problem)