PSY 105 Chapter 2: Chapter 2 Week 2

• School: Ryerson University
• Department: Psychology
• Course: PSY 105
• Professor: Tsasha Awong

Document Summary

Science and its theories must allow us to predict: karl popper & the falsification of theories. Science can help us to think more critically: empiricism vs. dogmatism. They vary depending on who we are studying and the variables of the situation. 1. theories: a hypothetical account of how & why a phenomenon occurs. Based on the concerns of a given research & his/her perspective on psychology. The scientific method helps transform ideas into testable questions and can generate helpful answers: systematic study of a phenomenon to learn about it. e. g. , theory of the diffusion of responsibility. Use a systematic way to try to organize and explain observations. Leads to questions or hypotheses to be tested. The procedure of the experiment must be the same for all participants (except for the manipulation of the independent variable). For example, the sample must be representative of the whole population. Measures must be reliable (consistent) and valid (measuring what we are trying to measure).