PSY 1101 Lecture 3: Psychological Science

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Gary Capstick

Document Summary

Agenda: the scientific method, description of behavior, case study, survey, sampling, naturalistic observation, correlation, experimentation. Between two things, a link or relationship, taking two variables. Expresses the relationship between measures the direction and the strength of the relationship in terms of: direction, strength. Ex: relationship between height and weight, 1 goes up and the other also goes up. How strong is the relationship and how closely do they move together. Graph that plots the two variables and gives us a sense between them. Plot the 2 variables 1 on x and 1 on y. You would get a positive correlation for height/weight and also a positive linear correlation. You can also get no relationship and perfect negative correlation (inversely related) move together in opposite directions. The correlation coefficient statistic expressing relationship the symbol is lowercase r the range of value you get is from -1. 00 to +1. 00 the sign indicates direction of the relationship.