PSYCH101 Lecture Notes - Lecture 3: White Noise, Random Assignment, Confounding

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH101
• Professor: Paul Wehr

Document Summary

We cannot evaluate the methods and results of the research. In natural sciences, thing that you want to study and the method of study are tightly related. This is not true in case of social sciences. Helping: number of times a person opens a door for someone. When we try to define something abstract, just consider the fact that you need to assign numbers. In an experiment the independent variable is manipulated. We search a number of violent tv series. People to give blast of white noise with volume control. Three criteria to establish cause and effect relationship: All confounding explanations and variables must be eliminated. For this experiment confounding variables have been distributed equally. The only thing permitted to vary between two groups is the independent variable. Same time of day, room with same illumination. Numbers are more objective: so we use statistics. **everything upto and including correlation would be included in the test.