PSYC 1103 Lecture Notes - Lecture 4: Descriptive Statistics, Sampling Bias, Blind Experiment
21 Dec 2016
School
Department
Course
Professor
Document Summary
Psyc 1103 - lecture 4 - psychology as a science (part 2) Random selection: choosing participants in such a way that everybody in the population of interest has an equal chance of participating in the study: this minimizes the chance of having participants who confirm your hypothesis. Sampling bias: choosing a sample that does not represent the population (ex. study on sexual belief that only recruits participants by advertising in. Convenience sample: participants who are willing to volunteer, but may not generalize to the population. Correlational research: the descriptive form of research such as case studies, naturalistic observations, and surveys, used to observe/describe behaviour, used to determine the existence of a relationship between variables, does not specify causation between variables. Experimental research: to demonstrate a cause and effect relationship between variables, manipulate at least one variable to examine changes in another variable, disadvantages of this type of research include generalizability and ecological validity.
