PSY 001 Lecture Notes - Lecture 3: Random Assignment, Informed Consent, Psych

• School: College of The Sequoias
• Department: Psychology (PSY)
• Course: PSY 001
• Professor: elizabeth

Document Summary

Used to investigate the relationships between variables. Correlation coefficients: indicate magnitude and direction of a relationship problems of causality and third variables limit conclusions based on correlations. Ex: . 75 means that the values of our two variables move in the same direction. 1 the value of one variable goes up the other one to, or the other way around. Negative correlations values move in opposite direction. (can be affected my wording) # tells you how strong the relationship is. The closer to 1 or -1 is stronger. Pros - description and prediction are possible. Cons - no causality; cannot explain the relationship. The impact of an independent variable on a dependent variable control groups and random assignment are necessary for reaching conclusions. Pros - conclusions can be drawn about causal relationship. Cons - ethical considerations, behavior constrained in the lab. Manipulate the independent variable, and see effects on the dependent variable.