01:830:101 Lecture Notes - Lecture 18: Random Assignment, Dependent And Independent Variables, Scatter Plot

• School: Rutgers University
• Department: Psychology
• Course: 01:830:101
• Professor: Professor Marvasti

Document Summary

Theory: an explanation using an integrated set of principles that organizes observations and predicts behaviors or events. Hypothesis: a testable prediction, often implied by a theory. Operational definition: a statement of the procedures (operations) used to define research variables. Replication: repeating the essence of a research study, usually with different participants in different situations, to see whether the basic finding extends to other participants and circumstances. Case study: an observation technique in which one person is studied in depth in the hope of revealing universal principles. Survey: a technique for ascertaining the self-reported attitudes or behaviors of a particular group, usually by questioning a representative, random sample of the group. Population: all the cases in a group being studied, from which samples may be drawn. Random sample: a sample that fairly represents a population because each member has an equal chance of inclusion.