PSYC207 Lecture Notes - Lecture 1: Null Hypothesis, Empiricism, Interquartile Range

• School: University of Delaware
• Department: Psychology
• Course: PSYC207
• Professor: Begosh Kristen

Document Summary

Tradition - info passed down through previous generations. Intuition - personally acquire feeling without evidence. Reasoning - using laws of logic to draw conclusions. Truth & validity - determined by sequence of premises in syllogisms. Science - combines reasoning with empiricism - logical thought + observation. Theory: formal statement about how concepts are related; already have evidence to support it. Ex: if an organism is a good fit to its environment, it will survive and reproduce. Systematic control; take into account all factors that can influence the outcome of your study. Population: entire group that your interested in studying vs. Sample: subset of the population that you use to draw conclusions about the population -- actually participates in the study. Representative: one that has the same characteristics as the population as a whole. Alternative hyp: there is a difference between groups. Non-directional - there is a difference but not speculating.