PSY 150A1 Lecture Notes - Lecture 3: Standard Deviation, Descriptive Statistics, Statistical Significance

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 150A1
• Professor: Lazarwicz

Document Summary

Step 2: from a hypothesis about the relationship between variables: hypothesis: prediction to be tested in a study, variable: an aspect of a study that can change. Either purposely changed (manipulated) or measured in an study. Step 3: test the hypothesis by collecting data using operation definitions of variables: operational definition: definition of a variable that species how it is measured/manipulated in a particular experiment. Step 4: formulate a theory: theory: set of principles that explain a set of observations. Step 5: test the theory by generating new hypotheses descriptive research: Descriptive research descriptive research: describes characteristics of a certain phenomenon/group of people (very broad) 3 major types of research: descriptive research, correlational research, experimental research, case study: technique in which one person is studied in depth, used to examine exceptional, rare cases. Independent variable (iv): aspect of the experiment that is manipulated by the researcher. Dependent variable (dv): aspect of the experiment that is measured.