PSYC 1010 Chapter Notes - Chapter 5: Statistical Hypothesis Testing, Type I And Type Ii Errors, Null Hypothesis

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1010
• Professor: Anne Bergen

Document Summary

A random sample is one in which every member of the population has an equal chance of being selected into the study: more likely to lead to a representative sample. A convenience sample is one that uses participants who are readily available. The safest way to collect a representative sample is by collecting a random sample. Random numbers often have strings of numbers that do not seem to be random: hard to have random sampling in social sciences because its difficult to have a whole population to choose from. Convenience sampling is faster, easier, and cheaper and therefore seen much more than random sampling. Generalizability refers to researchers" ability to apply findings from one sample or in one context to other samples or contexts: also called external validity. Replication is the duplication of scientific results, ideally in a different context or with a sample that has different characteristics: essentially do the study again.