P R 301 Chapter Notes - Chapter 2: Null Hypothesis

• School: Iowa State University
• Department: Public Relations
• Course: P R 301
• Professor: A. King

Document Summary

Subject: a research subject is any person, place, object or process being studied. In a survey this is called a respondent. Consent and protection of human beings is key (many guidelines) Operational definitions: to serve its customers better and to target its public relations plans more accurately. Ex. the unclear definition of owning a home. Anything that can change during the research. Can be controlled and/or measure but not always. Independent variables: a independent variable changes on its own, not as a result of another factor. Dependent variables: change in response to change in other factors. Intervening variables: between independent and dependent variables. It typically starts as the dependent variable and then ends as the independent variable. Control: to hold a certain variable steady while research happen on another variable. Hypothesis: explanation or expectation of an event. In research it is a prediction of the outcome of the research. Null hypotheses: an outcome different than what you expected.